pizzahut451-
Google any empire and massacres have been committed by all of them. Don't forget European empires justified colonising the rest of the world by bringing 'Christianity' to the 'uncivilised heathens'. It also made it easier to kill them when they were degraded to mere beasts. And what do you expect Muslims to do when a Crusader army comes along? Welcome them with open arms? All 3 of the Abrahamic faiths are as violent as each other whether now or throughout history.
And I quote Richard Dawkins:-
"The God of the Old Testament is arguably the most unpleasant character in all fiction: jealous and proud of it; a petty, unjust, unforgiving control-freak; a vindictive, bloodthirsty ethnic cleanser; a misogynistic, homophobic, racist, infanticidal, genocidal, filicidal, pestilential, megalomaniacal, sadomasochistic, capriciously malevolent bully."