I'm as atheist as they come (I'm actually anti-theist in a lot of ways but I'm not militant about it) and I live in a very Red, very "Christian" area of the country, but with a couple of exceptions I haven't had too many problems with "Christians" in face to face encounters, though they are often very judgemental people and I don't particularly like associating with them. Still I haven't had to pull out my Halberd once.
The only real way "Christians" negatively impact my life is when they vote in laws that requires non-"Christians" to follow their interpretation of their religion and/or try to impose their religious views on me such as making the display of "The Ten Commandments" (one of them anyway) a requirement in our public schools, which they do in my state with frequency.
Actual Christians are much more rare and I get along with them a lot better. These people actually follow with Jesus teachings (within reason) and don't try to force their beliefs onto others. My mom was one such person in her later years and she was the best person I ever met in my life (before and after being more religious).
It takes all kinds. What's much more important to me than what you believe is how you behave.