You seem to forget that they are also right wing as well.  You think fundamentalist clerics are not right wing?  They are...Saudi Arabia, right wing, Pakistan right wing, Israel, right wing, Daesh, right wing.   When Islam was at its peak it was a result of philosophers and scientists giving the world amazing knowledge.....and then along came the right wing fundamentalists and the tolerant scientists and philosophers were not much longer for this world.   Study Scott it might help.