As a person who comes from a Muslim family I agree 100% with this statement. HOWEVER, something, that is not often talked about is that... just as Christians have the new testament which softens the scriptures and offers a " rational" explanation to the old testament. Muslims have what's called "hadith" which are religious documents that are supposed to provide a rational interpretation of the radical verses in the Koran. Basically a way of saying " No, that's not really what's meant by -- fill in radical verse--" only problem is there are thousands of these documents, good luck finding the right ones and not running into contradictory ones :/
With that being said.... I'm out of the country right now for work.... Hope Trump let's me back in this weekend 

Interesting Quotes from the Hadith:
Muhammad said that if someone leaves Islam, to kill him.
Of the Unbelievers: Sura 4:89 “seize them and slay them wherever you find them: and in any case take no friends or helpers from their ranks.”
Slay the idolaters wherever you find them, and take them captives and besiege them and lie in wait for them in every ambush. (Sura 9:5)
Take not the Jews and Christians for friends ... slay the idolaters [infidels] wherever ye find them. ...Fight against those who ... believe not in Allah nor the Last Day” (Sura 5:51; 9:5,29,41).
Sura 9:39 “If you do not fight, He will punish you severely, and put others in your place”
Sura 9:123: “Believers! wage war against such of the infidels as are your neighbours, and let them find you rigorous: and know that God is with those who fear him.” Hey neighbor how do you feel about this?
This guy called it: