God either exists or he doesn't. Now, that means either the atheists or the theists are wrong. The agnostics don't try to decide so they are not at odds there. Clearly, however, one of us is not correct. Both sides, theists and atheists, have to look for the truth.
Theories is more accurate, and theories are wrong or right.
Don't force your theist friends to change their lifestyle, but try and explain your theories to them, because if they are right, it would be good if everyone knew about them. If, however, you have any shadow of doubt about being correct in your stance, I would encourage you to delve into that topic and try and either conform your theory to it, or acquire a new theory that fits. I would be very interested to hear what you have to say on this topic. I think these discussions are quite a bit of fun, no matter whose side you're on. At any rate, if you wanted a theist's view, that's mine.