My very liberal sister told me back in 1985, that Communism was just another form of Government..........she was and still is very ignorant about that. You seem to have bought into the view that all religions are equally corrupt and viscous. Comparing Muslim v. Christian in conquest and slaughter is simply not historically accurate at all.
doubt all you like, but that is what I am seeing and I was just over in the ME for the past year. Historical information tends to support my assumption too.
Unless you can disprove that in anyway, I dont think you can say much.