I just want to say I don't see why this is getting down voted, this is nostupidquestions, and on top of that, this one is interesting and I'm excited to see peoples insight.
Agreed, I'm new too the community but I am sure if OP asked this in autism@lemmy.world it would be just fine. Folks there are very kind.
In my family we'd joke Star Trek was closer to our religion then any other nonsense. We'd at least have a ritual around gathering as a family to watch it. I'm the only diagnosed one but I assume my family is thick with Nerodivergency. Also I'm not even that into trek.
When I was about 6 my older brother told me Santa didn't exist and I was like "yhea that makes sense". He also mentioned God didn't exist and again and I reponded "well of course not". At some point in my life the existence of Santa was more believable then the idea of God.
Growing up I was exposed to so many differnt cultures, differnt Gods. I think they are all valid, it is important to be secular within reason. Honestly, I've been a part of enough nerdy Fandoms over the years to see the parallels. I'd no more insult the Christian God then I whould Picard.
More to the question though it may have to donwith the whole sense of community and belonging thing.
From my understanding churches are a pretty vulnerable experience, there's signing (potentally loud singinging), confessing of sins, forced friendliness, and positive expressions, and higtened emotions. It seems incredibly socially draining. If I had to do that unto school I'd have had a considerably more breakdowns as a kid.