Why are muslims so peaceful?

Why are muslims so peaceful? "Over 670 million non-Muslims massacred since the birth of Islam ...
www.gazetawarszawska.com/...islam/5060-over-670-million-non-muslims-massacred-...
Dec 20, 2016 - 80 million Christians killed by Muslims during 500 years in the Balkan ... Muslims slaughtered over 400 million Hindus during an 800 year ..."