Muslims do indeed kill Muslims. And over, what appears to us, to be truly silly shit. I wouldn't personally want to have to engage with either side in trying to understand their justification for it. When two western nations go to war, you have Christians killing Christians.
And as Tom Lehrer told us, "Everybody hates the Jews."
"Oh the white folks hate the black folks
And the black folks hate the white folks
To hate all but the right folks
It's American as apple pie."
You keep changing the subject. There are substantial numbers of every kind of person who think it OK to kill others - not just Mooslims. Witness our American 2003 slaughter from the air of an innocent populace who had nothing to do with attacking us in 2001. You seem to think that's OK - even though far greater numbers of "those types" were killed than "our types." This is simply terrorism, with a nationalist justification behind it. I understand you don't support this war - how then to support the excuse, which continue to be justified by demonizing Islam?
It might well be that if Israel was not there, but more importantly if we had no bases there, we would have no conflict with that part of the world. Currently, and for a large part of the last century, we've been literally or practically an invading and occupying force.
If we were gone then they're killing each other would be their own business, and you likely wouldn't have any more opinion to express about it than you do about Africans slaughtering Africans for ancient tribal reasons: i.e. 0.
DS