I'm in a place right now where I can't really call myself a member of the Catholic Church. I believe in the theology and intellectual tradition of Catholicism, but have never been able to find fellowship and community within the actual organization. My experience has been similar to OP's (apart from his far-right rantings). Everybody in Mass just seems like they are there to "eat their cracker" and go home. I've been to services where people don't even turn and offer each other peace, rather a family of four will hug each other and ignore everyone else.
I'm currently trying to get involved in a Bible study group, but it has the problem of being one big already-established group where newcomers are just sort of ignored. Like the kind of people who say to you "Hey how's it going" and then immediately turn their back to go make inside jokes with a friend. No structure or anything to it.
Christianity explicitly calls for fellowship and service, yet I feel more drawn towards practicing it as a hermit and just forgoing organized religion as a whole. Because I'm starting to feel like "What's the point?", might as well pursue an inner spiritual journey than keep trying to force myself into a sense of community.