Why are the only good Muslims, moderate Muslims?
There's a question to contemplate.
Whenever you read or hear some bad news about Muslim extremists blow up yadda-yadda, beheading bla-blah, shooting yakkity-yak - you will soon hear the saw, "There are plenty of moderate Muslims."
This question popped into my head one day and I came to the realization that you judge a belief system by its extremists, not its moderates.
Extremist Marxists = Stalin, Lenin, Mao, etc.
Extremist Muslims = Osama Bin Laden, ISIS
So if you want to know if a belief system is good or not, just examine its extremists and their lives will tell you where that belief system will lead you.
Who are your extremists?