I'm saying they have legitimate reasons to be suspicious, paranoid, and on edge. Of course they wouldn't fear all Muslims, but given Shia and Sunni Muslims have a long history of not getting along, and given ISIS is a Sunni extremist group, yes, it becomes understandable if certain things, including Sunni identity, may trigger them to a degree. That is why I said it's hard to call it bigotry rather than survival. It's a completely different situation than what we know in Europe and North America.
However, here in America, everyone can **** off about it. For Americans, Muslims terrorists just aren't going to be your death. It happens to a few, but drunk drivers killed more people during 2001 than those few Muslim terrorists who carried out the 9/11 attack. Here, if you are are scared, suspicious, or paranoid, you have no real or legitimate purpose or reason for feeling so.