The glaring difference between Charlottesville & New York is that there were two opposing mobs of people at Charlottesville.  In NYC, there was no mob or protest just people out for a walk or bike ride on a normal day.  Also when a guy gets out of a truck shouting “Allahu Akbar” after running several people over, it’s pretty clear what the situation is.  Only the densest of people fail to recognize that for what it is.