Look back, long before any US intervention and you will find the Moooslims were fire bombing trains and killing the 'infidels'. It's what their religion directs them to do. Read the Koran.
Unfortunately you are right, it's not about what you believe, but the freedom to believe what you want.
If I come to you and say:
"You must believe what I do because it's the only reality, otherwise you have no place in this world..."
Your only options would be to accept it or die, or fight back if you can.
When a bad situation starts, many others could follow like chain reaction...
Where does this stop? Only if the good people decide to tolerate the injustice and sacrifice themselves.
With one mistake you cannot correct a previous mistake...