So that's as good as you can get in finding something Doug Saunders actually wrote that supposedly means he thinks everything  was peaches and cream in the Muslim world before the Europeans messed it up?  

His premise wasn't "It is all the West's fault."  You made that up.

His column had to do with concepts of muslim unity and muslim as race.  And no, he didn't excuse muslims for their own share of historical racism.  In fact, had you read carefully, you'd see the opposite.

But I suspect it didn't really matter what he wrote his column about, you were going to write your bit.