Undying ignorant misconceptions plague the stance of materialistic naturalism. Opponents continuously portray it as a horrible unworkable context in which to live one's life—a tactic that bluntly prioritizes likability over accuracy, by the way. Recently I criticized the misconceived "problem" of human significance. It may be paired with the second misconceived "problem" of mandatory negativity: "The lives of followers of materialistic naturalism must be pervaded by negativity."
I should mention that negativity itself is plagued by a few harmful misconceptions. Unending happiness is stunningly unrealistic. Negative emotions shouldn't be avoided at all costs. The suppression and rejection of negative emotions could be more detrimental long-term than acceptance and release. When tragedies occur, or even unexpected setbacks, then flashes of negativity aren't shameful; happy reactions would be more maladjusted or delusional. Especially after painful life-changing trauma, extended episodes of negativity aren't signs of weakness either. Nobody in those circumstances should be discouraged from seeking qualified support. The same applies to cases of depression and other devastating disorders. My general point is that no stance should falsely claim to be a panacea for negativity anyway. Doing so is a recipe for inhibiting followers from expressing their genuine emotions to each other. "I know how I feel, but showing it would cast doubt on my ludicrously optimistic beliefs."
Indeed, like the common cold, normal onset of negativity is a familiar malady. And the cheery advertising of faith-beliefs' indispensable cure for negativity is comparable to the advertising of a wonder cure for the common cold. It only holds attention if the audience considers themselves sick beforehand. Almost by definition, a follower of materialistic naturalism needs to match the unappealing "photograph taken before" the effect of the faith-beliefs. Their whole demeanor must be overshadowed, the way that someone at the start of a T.V. commercial is emotionally crushed until they have a new gadget to overcome an everyday difficulty. Ideally, their negativity should be intolerable and have a cause that corresponds to the remedy pushed by the faith-beliefs. It could be forced into the mold if necessary. Physical causes might be projected onto manifestations of supernatural causes that are "solvable" through supernatural means.
In addition to advertising to the unconverted, this threatening story of life without the faith-beliefs serves the function of reassurance of the converted. Devoted followers may credit their faith-beliefs for virtually all of their positive emotions and experiences. Given that they recognize no other source of deep fulfillment for themselves, then of course they think everybody would surely feel unfulfilled without their particular set of faith-beliefs. On some level, the (alleged) misery of nonmembers is a source of validation for the very existence of the in-group. Needless to say, countless in-groups simultaneously profess that every other group than theirs is more vulnerable to negativity.
Besides overrating the benefits, exaggeration of the impact of faith-beliefs could result in another misleading comparison. Since followers of faith-beliefs partially build their lives around supernatural notions, they may speculate that followers of materialistic naturalism somehow build their lives around the lack of supernatural notions. However, the analogy is nonsense. While a top interest might affect the rest of someone's life either directly or indirectly, the same cannot be inferred for a top disinterest. Usually, when someone says they're uninterested in golf, the listener doesn't infer that the speaker is generally uninterested in everything. And when someone says they're unconvinced by the argument for Atlantis, the listener doesn't infer that the speaker is unconvinced by every argument ever made. And when someone says they're unwilling to defer to the opinion of a spiritual authority/expert, the listener doesn't infer that the speaker is unwilling to defer to the opinion of every kind of authority/expert.
For the most part, followers of materialistic naturalism are similarly unhampered by their disinterest in miscellaneous supernatural notions. Their "negative" perspective on god #146 doesn't enforce a negative attitude about life, the universe, and everything. This misunderstanding is worsened by the varying usage of words and concepts. Materialistic naturalism is logically incompatible with many faith-beliefs. Nevertheless, its followers can still "have faith" in a close friend and "believe" that a trusted ally will honor agreements. They can "hope" that others have good intentions until proven otherwise. They can "be faithful" to their commitments, ethics, and objectives. They may realize the impact of human-constructed abstract social hierarchies, such as economic class, whether or not the hierarchies are "physically real". (My pragmatic view is that a social hierarchy is no more and no less "real" than the extent to which it's distinguishable via relevant human actions.)
Regardless of their stances on the underpinnings of realities, everyone tends to encounter timeless issues because they're all humans, and they're encountering other humans. For these issues, negativity is a faulty strategy. Living wastefully or destructively is a plainly ridiculous response to the nonexistence of an afterlife. Evolution isn't a theory of human morality. The material basis of pain isn't a sufficient reason to spread it. Resistance to unwarranted religious rules doesn't presuppose the worship of chaos. Although some of my ethical judgments changed after I quit surrendering to such rules, cooperation and altruism and compromise continued to seem like sensible strategies. It's naive and offensive, honestly, to allege that everyone without faith-beliefs is so fundamentally different that they're tortured by despair or inhumanly EVIL.
Moreover, the suggested drastic disparity in negativity fails to be confirmed in numerous situations. Faith-beliefs appear to have motivated and/or rationalized terrifying acts on occasion. Followers may be more pessimistic about humanity. Perhaps they think supernatural guidance must be forcefully imposed on "brutal" natural humanity. The sad fact is that beliefs are less transformative than assumed. Some humans usually manage to justify fear, aggression, power, greed, and so forth, while others usually manage to advocate the opposites. They unearth positive and negative aspects according to their own inclinations.
Faith-beliefs can be like a rigid script, but if so then the actors already rewrite it time and again...and improvise altogether. Just dropping the script is much more candid and flexible. Without it, humans have more responsibility, agency, and freedom. The cost is greater challenge but not greater negativity. Rather, greater positivity can spring from the complexity of open-ended possibilities, which creatively balance the current realities of the specific humans involved. Arguably, a negative outlook is more consistent with scripted lives, because an impersonal unchangeable script cannot accommodate the positive gains within unforeseen options and conditions.
Unfortunately, these positives might not be easily visible. Since followers may not (knowingly) interact closely with outsiders, they rely on media attention for their impressions. Since instances of controversy and conflict gather media attention, their impressions of outsiders are dominated by those. They don't observe outsiders acting like them: facing dilemmas, assisting relatives and companions, striving toward improved societies. They mostly observe the publicized actions that they call "negative": self-assured books with purposely provocative titles or protests and lawsuits against attempts to exploit government to support the majority religion. And they think, "When the media shows me that all those infidels do all the time is agitate, then my faith-beliefs are vastly more satisfying and positive." Meanwhile, without irony, they also complain about the unfair bad impression of religion produced by the "disproportionate obsession" of media attention on horrendous scandals...