The thing about it that really gets me is that, in my experience with Christianity (I grew up going to church every week), these people are NOT being "literal Christians". If you're being right on with the Bible, you have to follow the New Testament, not the Old Testament. The OT is the one with all the judgment and hate and killing. The NT, although some of the books do say some objectionable things here and there, basically consists of Jesus saying, alright guys, the way we're doing things (ie, the Old Testament way) is just plain wrong, you need to love everyone, and let's get money out of the church, and let's redistribute the wealth from the wealthy to all people, and by the way god loves everyone. It's so weird to me how people get it so twisted. Of course that's not new, Catholicism was started by the Romans around year 300 in order to co-opt the rising new Christ movement to maintain control over the people. A while after that came the Crusades, and hundreds of years of brutal imperialism in the name of Christianity. Like always, the people in control realize that religion is the most powerful way to control people so they've done just like the Romans did so long ago and co-opted it to suit their purposes.
It certainly is refreshing to meet people who see past that and actually use religion to be good people, as it was intended. My mom is like that, which is probably why even though I am not religious, I respect when people are and I don't lump them all together as hateful zealots. Just some of them are.