Church is awful.
Sure, there's the community building, but you can find that literally anywhere. And I mean literally anywhere.
Want to get into niche tech communities? There's people for that. Want to get into pet stuff? People for that. Want to do car stuff, motorcycle stuff, hiking stuff, swimming, running, jumping, biking, reading, etc. etc. etc.
There's literally people for that all over.
The only thing church had going for it was the belief that christians were somehow better people than the rest of humanity and you could learn a thing or two by going to church: Well, old pedophile fraudster traitor donnie dispelled that notion for a lot of people.
Not because he, particularly, embodies christianity, but that all the christians in the US seem to claim he does. They've got no clothes on right now. It's so transparent that if something like the antichrist exists, it would be trump, and yet they're pushing him to the front and praying for him and buying his trump golden bibles and blessing golden statues of trump (seriously).
So to anyone with half a brain, christianity is in decline, they're exposed as fraudsters, because they chose to back a fraudster/grifter as their #1 guy.