Most observers understand the difference between a committed Christian who accepts Jesus as a model for living and a 'cultural Christian' who happens to live in a nation with a Christian heritage. Most Muslims do not.
It is the mark of an educated mind to be able to entertain a thought without accepting it.
It's not a gun control problem; it's a cultural control problem.
It is not our differences that divide us. It is our inability to recognize, accept, and celebrate those differences.