Where do you live? Not the US, surely. I don't recognize the America you're describing at all. Christianity is probably one of the most tolerant religions on the planet. Christians regularly turn the other cheek and love to "live and let live". They only get aggressive when people try to interfere with their ability to practice their religion.
If you haven't noticed, there's a war against christianity in the US. Nativity scenes being shut down. Not being able to pray in school. The constant attacks from popular culture and the media. Atheists tend to be especially vocal about the fact that they shouldn't have to see, think or hear anything even tangentially related to Christianity (although they have no problem with Islam. Go figure.) Christians see this as an attack on their ability to practice their religion.