Most atheists still want some form of infallible higher power or blissful higher experience. Many of them turn to a certain conception of science, which is why leftoids love to say things like "I believe in/trust science" and "the science is settled". Anyone who's ever read Chapter 1: The Scientific Method in any elementary school physical science textbook would know that the science is never settled and that science isn't something infallible you can always trust. Other atheists like Kevin decide to seek bliss by immersing themselves in consoomption, drugs, and coom. Atheists like Kevin have become atheists not because they realize religion is silly and corrupt. They don't want it to be true because they don't want to have to change their ways to avoid going to hell.
There's a theory that people who have a gene called VMAT-2 are predisposed to religious and spiritual thinking, so maybe Kevin has that gene.
Embracing the scientific mindset means you can't reject the possibility of divinity, but it also means you won't be following any of them due to the lack of existent evidence to any of them beyond "dude trust me". Faith by its very nature is "dude trust me". The moment if/when the divine is proven it won't be mere faith, it will be scientific fact and we'll be utilizing it for some wild stuff I'm sure, even if it goes against any and all religions of the society that discovers it.
Yet anyone who insists there's absolutely no such thing as a god while yelling belief in science is likely a pea brain. Any scientist worth their salt really would love to prove the existence of the divine, because it would help understand so many details of the oddities of our world. It would help remove so much uncertainty about our origins, even if the ultimate version of "a wizard did it" would be kind of lame in my opinion.
Many modern scientists are out there crushing it with discoveries about the universe while going to church each Sunday since the lack of convincing evidence hasn't disrupted their faith or the personal comfort it brings them, and many believe it is their duty to the Deity of their choice to understand the world around us and perform these discoveries. Yet many others look at the lack of evidence and go "None of this seems any more plausible that there's a heaven and hell anymore than Zeus is going to strike me down." Both of these are equally valid interpretations. Even if I personally lean towards the latter.
It is also worth remembering: Atheism doesn't mean "rejects Christianity", "believes in science", nor even just "rejection of mainstream or popular religions" it literally means "a disbelief in any and all deities", arguably you could believe in non-deithic entities and religions and still be both an atheist and religious. Superstition and folklore very much is such a thing that could provide the basis of atheistic faith.
Instead I would argue Kevin isn't so much an atheist as he is someone who is shopping around seeking a religion that doesn't condemn his actions, much like the Athenians embracing Dionysus to justify hedonism. I personally blame it on a failing of people like Kevin not being able to cope with the fact that they are pieces of shit that are wasting the only existence they will ever have, and so are trying to invent something that refutes that in a form that can't be refuted in an of itself.
There's also people who like to believe that having a religion protects one from being an asshat, this is not true. I personally believe that religion merely justifies selective asshattery and provides a comforting way to convince someone that another's asshattery will be punished eventually. I suspect someone as impotent as Kevin is also prone to believing that faith protects him from being responsible for his own behaviour and the consequences.
