In a lead New York Times article entitled "Americans Attracted to ISIS Find an ‘Echo Chamber’ on Social Media" by Scott Shane, Matt Apuzzo and Eric Schmitt, we are told of an "online community of [Islamic State] sympathizers in the United States" (my emphasis in red):
"As the Obama administration takes on the multidimensional challenge posed by the Islamic State after the killings in San Bernardino, Calif., the online community of sympathizers in the United States is a critical focus. They number in the hundreds, experts say, and fit no single profile. Among those whose flirtations took a serious turn and led to criminal charges are a trio of teenage siblings from Chicago, a former Air Force mechanic in his late 40s from New Jersey, and a mother of two from Philadelphia.
In fact, they have little in common except one thing: the weeks or months spent marinating in the rhetoric and symbolism of the Islamic State, courtesy of Twitter and other Internet platforms."
"Little in common"? They're not mostly Muslims (I recommend going to the link if you want a laugh)?