Buh Buh Buh But...I Don't Understand...

Why would this peaceful crowd protesting Park 51 just pick out some random black guy to yell and scream at for no reason? I mean sure the crowd is lily white and yes I guess a moron might think the guy's clearly marked Under Armor skull cap is some kind of Mooslem apparel but that crowd would have to be pretty racially motivated to do something like that right?

And I mean there weren't any racist in that crowd were there?

Were there?