A valid conclusion, based on where he came from: an atheist mother and a communist family.
But you can't dispute that he is, at the very least, also a Muslim sympathizer.
I don't think he sympathizes with anything, except those who share his leftist extremist ideology. Radical Islam is useful to him because they are both aligned in their hatred of the idea of America. But he wouldn't hesitate for an instant to throw them under the bus if it served his agenda.