I don't see any of that as unreasonable.
Just like I don't see it as unreasonable for a white person to clutch their belongings when in the presence of a black man or to cross the street when they see a black person approaching them. After all, black people statistically commit more crimes so they should be fine with the assumption that they are most likely a criminal.
"Science is interesting, and if you don't agree you can fuck off." -Dawkins