Christianity also showed a definite lack of tolerance for those who did not belong.
Remember the thugs who went out with the absentee King Richard 1, or the Spanish Inquisition?
Where are the Cathars now?
Christianity too had its militants, every bit as nasty as Islamists.
,..,.

I anticipated & dealt with these points, Don ~~~

"features, in short, inimical to and incompatible with our present modern and humane traditions, whatever might have been the developmental path of previous ages"