When your religion says "whatever" on doctrinal matters, regards Jesus as just another wise teacher, refuses on principle to evangelize and lets you do pretty much what you want, it's a short step to deciding that one of the things you don't want to do is get up on Sunday morning and go to church.
Yes, some excellent points.
On the other hand, "Conservative Christianity" isn't going to save us, either, or even just drag us through this vale of tears another day. Only Christ can do it.