Personally, I don't really argue religion with any of my family. Not because I'm scared that they'll disown me, but because I'm afraid that I could actually cause them to stop believing in god. For my brother, it seems like religion is a strong part of his life and I do think that his faith got stronger because of his wife. But I do think there is some weakness there and if I'm able to "debate" him then he could stop being religious and I would feel bad being responsible for that.
I also feel that I could stop my mom from believing, because I already discussed religion with her a little bit, and the things I told her she had no idea about and couldn't believe. I do feel that if I hammered on about it, I could stop her from believing.
How do you guys feel about it?