Rather, I think that American Liberals are attracted to any nation that hates America -- period.
For the too-many decades of the Cold War, they were the adoring sycophants of Stalin, Kruschev, Brezhnev, Mao, Castro and other Communist dictators for the simple reason that these murderous tyrants hated the U.S. and loved to demonstrate that hatred.
The poor American Liberals were just plain LOST in the 1990's with no powerful, vocal enemy of America to worship. They were a rudderless ship, drifting aimlessly, dreaming of the good old days as they gazed at their yellowing posters of Che on the wall.
Fortunately (from the Liberal point of view) a new and powerful enemy of America ended this 10-year-long drought when they announced their presence in a visually stupendous way on 9/11/01.
It's no accident that Islam had become the Beacon Of Hope for American Liberals in the last 14 months.
Their Credo: "The Enemy Of My Government Is My Friend".