Well im sure there are lots of muslims who hate America and/or Americans as well as there are so many of them love and live America. You should not frame all Muslims as one and tag The Religion based on that.
If Islam says "Love Every Human Being" and there are still Muslims that hate other people, i would find it wrong, Un-Islamic even consider it sin. I am a Muslim and I would not support hate for any reason.
The ones that hates America and takes a fatal action based on their anger are the extreme, fanatic ones as there are in every religion. They are a very small minority and ignored, sometimes punished by the other muslims. They sometimes hate even their own Muslim Brothers.
Muslims should be in peace with everybody. That is not what is going on in the world now but that is the goal of every true Muslim.