Yes, but many Christians can't understand that there are people who honestly don't believe that the Christian God exists, and so if you are speaking out against Christianity then you must be in league with Satan. That's why they also will say that atheists love Satan or hate God. When they hear someone say "I don't believe in God" they think they're using believe similarly to when someone says "I don't believe in abortion," ie that it's a bad thing, not that it actually does not exist.