Sorry, I can't relate your stereotypes to any of the friends I have or people I've known. Nothing new in that, though. I have seen similarly ridiculous stereotypes re Democrat and Republican, and rarely do they have basis in fact either.
A couple black guys saved my life once. I almost married a Jewish girl. Had a best friend from Iran. Another from Iraq.
Etc, etc, etc.
i don't expect you to relate them to the people you've known i expect you to accept the overwhelming statistical evidence that blacks and muslim immigrants have a greater propensity to violent and sexual crimes and maybe go a step further and agree that welcoming millions more of them into your country isn't the smartest idea. but that's something else. stereotypes might be exaggerations and assumptions but they have to be based on real things that exist or they wouldn't be offensive. calling a jew stupid and lazy doesn't have the same ring to it as calling him fagin or shylock.