I have a few christians in my circle and find them to be very respectful
Why report them? Their opinions are so laughably stupid that they're good for the entertainment value alone.
Religions have "holy books", science has evidence. Facts beat fictions every time. That's why religions resort to physical violence so often and so quickly, it's all they have. They can't win on strength of argument, so they try to win by strength of force. It doesn't change the fact that they're wrong.
I have had a couple of messages offering to save my soul. I just delete and forget about it. Life is just too short to care sometimes.
Good for you!
How can I tell "Non-Christians"? I've previously questioned why gay folk have to start a post with "I'm gay/lesbian etc" because I don't care and I don't see the relevance.