I think it's fairly closed-minded to be scared of a young man who looks to your eyes to be Muslim speaking Arabic on a plane. It's flawed thinking. But I also think lots of people engage in that kind of flawed thinking.
The difference, for me, is that it's bigoted, or racist if the issue pertains to race, to not admit that it's a flaw, and a problem on your end.
Example (hypothetical): I get nervous when black teenagers come into my store, because I irrationally think everyone of them is going to rob me. I know that's wrong, and I'm ashamed of it.
Example (hypothetical): I get nervous when black teenager come into my store because I think every one of them is going to rob me. I know they're not all bad, but stereotypes are there for a reason.
One of these statements is a person's admission of a personality flaw that they wish they didn't have. One that they're hopefully going to work on. One of them is racism thinly disguised as illogical pragmatism or a flawed rationalization.
Actually I lost my point here, but I think it has to do with Marc Cuban?