Nonetheless, it is an impressive piece of argument. By the way, as you are probably aware, David Horowitz wrote a book "Unholy Alliance" about this very topic in 2006. In it he researches the evolution of Left's romance with radical Islam.
I meant to give the link to the book in my previous reply. I wish FR had an “edit” function. http://www.amazon.com/Unholy-Alliance-Radical-Islam-American/dp/0895260263/ref=sr_1_1?ie=UTF8&qid=1376856421&sr=8-1&keywords=horowitz+unholy
Yes, heard about the book but have not gotten around to reading it yet.