It also provides a simple and easily understood alibi for living in miserable conditions with zero chance of change - someone else did it, "they" did it to "us", "they" have stuff and we don't. That factor alone means that islam has a great chance among the "victim-American" crowd and the illegal immigrant opportunists that our own left considers their power base.
Islam provides the same morbid comfort found in living under any dictatorship. Years after the fall of Hitler, the Berlin Wall, and the USSR, there remain echos of how easy it was to live in a system that planned your entire existance for you.