Thats funny that you mention that. Go into any academic setting and you will find professors talk and talk about the dark ages of europe and how Christianity was exclusive. They will point out how it gave special privelages to the cleric class, how it denied education to the average person, how it forcefully converted people, how it discouraged science in order to preserve its own power, and how it excluded undesirables like women in the church.
Yet when you suggest that Islam today is going through the same type of period (which it is) the professors go ape$hit defending Islam to the point of outright hypocrisy. Such is the world of leftist PC.
As well, those same egg-heads will portray medieval Islam as "tolerant" treating their dhimmi with respect. The fact that they're parroting revisionist Islamic history and whitewashing the perpetual Jihads and the destruction of Eastern Christianity tells you a lot about the state of our institutes of lower learning.