I agree those dancing is completely infuriating. Whether or not they believe the US is the Great Satan or whatever, this was innocent civilians who were killed. I may be happy if Iraqi soldiers were terminated by our army, but I would definitely not feel the same way if innocent civilians were targeted exclusively.
In any case, as someone who can possibly be mistaken of Middle Eastern descent I am also worried of backlash. They had an interview with a Arabian grocer who works in downtown Pittsburgh and asked if he was worried. He said no because he's lived here for 55 years and everybody knows him. Similarly, I feel ok in my neighborhood, but unsure if I want to drive to new places in the short term.