No, it isn't. If people have a generalized view about Muslims based on an emotional reaction to 9/11, that is prejudice. There is no other word for it, and I'm sorry if it makes you uncomfortable.
I gave the example previously (which you ignored) of a guy who opposes a black family moving into his neighborhood, because he had friends or family or just people he knew who were harmed by someone who is African American. Yes, he can have that opinion, but is that opinion really defensible?
It's generalizing, SF. It's painting a large group with the actions of a fanatical few. If you can't see that, I can't help you. You seem determined to ignore the obvious here.