The leftists assumed the Muslim kids would reject Islam within 1 generation. Just as they rejected Christianity.
They may have made a deadly miscalculation...
This. Exactly this. They think that all it takes is to educate away their ideology. They forget that their own Christian ideals weren't really rejected in just one generation--it happened over the course of many decades from the Enlightenment to today.
How are the young second generation Muslims to reject Islam, when to do so is a death sentence? Islam is not a religion, it is a way of life governed by the sword. To compromise between the “reformed version” and the historical version is to defy Allah, and deserve to die.