You don't know God exists. You can't be certain God exists. But, you can believe God exists. I believe God exists, but I don't take it upon myself to assume the position of God and 'save' people. I don't have a problem with evangelizing itself (necessary for a growing church), just the attitude most bring to it (I'm saving the world, etc.).
God will sort everyone out when the time comes.
I don't believe in the supernatural in any form.
If there is a God I am prepared to be judged upon my deeds, I would doubt any kind of God would make me suffer for not choosing teams. If there is a God he will make all knowledge available to me.
Most religions believe if you choose the wrong "team" your in for a pretty crappy afterlife.