Well, that's your opinion. But clearly a lot of Christians have a different interpretation, and they have scripture to back up their view as well.
They really only do if they use the old testament, which is basically Jewish. What I meant, I suppose, was if you read about Jesus Christ you read about a guy who is peaceful and loving and embracing and forgiving, and if you read about Muhammad you read about a guy who led conquering armies, took women as sex slaves, and ordered people assassinated for mocking him. It's not really a matter of interpretation. If you really take the first guy as your guide you're not going to be beating up gays. If you really take the second guy as your lesson you'll be committing a lot of violence on anyone who fails to abide by Allah's laws.
That's not to say idiots can interpret complex stories any damned way they want, but the examples are pretty clear of what these two did and didn't do.