How extreme is this?

The standard rebuttal that all faiths have at one time or another shown themselves prone to violence and repression misses the essential point. All the major religions have reformed themselves, reducing or eliminating the all-too-human tendency to sanctimonious oppression—and none of these faiths, let us remember, endorsed oppression as a universal creedal or Divine imperative. Such is not the case with Islam, a communion that since its inception in the 7th century has seldom strayed from its sanguinary path of carnage and subdual. Its incendiary prescriptions and commands, as many scholars have noted, are open-ended and contain no “sunset clause.” They are perpetual and mandatory, feeding what essayist Bill Kassel calls “religious-themed barbarism.”

Not extreme at all. Read it through. And read the comments too.