I said atheism.
There are many reasons. One of them being the practice of adopting aspects/teachings of the bible to shape their morality and definition of good vs evil without actually giving the bible any credit because surely human kind would have arrived to those conclusions with or without God.
Humans are wired to worship something. If it’s not our creator then it will be the environment, money, idols, ourselves, etc.
More recently some of these people seriously entertain simulation theory, but the prospect of a God that created everything is a bridge too far.
Going through life knowing that nothing matters because eventually everyone will become worm food has to be quite depressing. No wonder ppl need to be distracted 24/7 otherwise they would have to wrestle with that reality day in and day out.