Rage and vitriol is a bad thing, shade. That kind of thing could get this topic locked, and then the religion discussion would leak all over the rest of the board. And don't worry, I think my post will incite enough of it, even if I don't intend for that to happen (and I really don't).
I agree with solitary religion, but groups can help. Religion (especially the really big ones) is too much about following orders. To me, religion is much more about a journey of self-discovery, and discovering the greater "truth" behind existence and the universe. Following along with the same thing that everybody is doesn't help you if you don't at least question it a bit. If you question it, and find that you do believe in it, then fine. But even if you don't agree with one tiny thing, then it's not entirely the same religion. You can still go to a group, but it's probably a bad idea to try to convince yourself that the group you're going to has the right answer. Far too many people just follow along with Christianity (or Islam, or Judaism, or Hinduism, or whatever), without ever questioning it, because it's what their parents and culture taught them to believe.
I'm not criticizing Christians, Christianity, or organized religion as a whole, but it's annoying when people don't at least stop to think. I questioned my parent's beliefs, and found that I didn't believe in them at all, so I moved on. Many people have done this. While I can't always agree what they found for themselves, I can at least not yell at them for not having my own beliefs. Tell somebody to look into my religion a bit? Sure, but I'm not going to try to convince them to change their beliefs because I told them to. I want people to find their own beliefs.
Wow, that's a nice tangent for me to launch myself on.
Cathedrals and such are pretty nice to look at though, even if you don't agree with the beliefs of the people that built it, and the purpose it was built for. Religious tolerance is a nice thing to have, isn't it? Of course, it's less about religious tolerance here, and more about appreciation of the building itself, but it's nice to separate those things enough that you can appreciate the building. Sometimes not seeing the forest for the trees is a good thing, if that makes any sense.