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.
I would not dispute this. Different populations of humans are different for both genetic and cultural reasons. I would very much disagree with anyone who goes from there to say that we have a Black, or a Arab, or a Jewish problem.
Humanity as a whole has a violence problem, we have a rape problem, we have collectivism problems, and fiat problems and perhaps biggest of all we have a low IQ problem. These problems are distributed among the entire human population and by no means are they unique to any skin tone or ancestry.
Like all human traits these problems are not necessarily distributed equally among us. Focusing on skin color or racial purity is not only not helpful it obscures the larger issue and distracts from the development of solutions.
i can say that if the good are outweighed by the bad it is better to have none
There are very likely other forms of life in the universe more advanced than us. This same line of violent thought could easily be applied to humanity as a whole. Ask yourself if you would accept being judged by them in the same fashion.
your analysis would make perfect sense to someone with a marxist world view that ignores nations and borders and sees the importing millions of blacks and muslims to reduce global inequality as a normal thing.
here is the explanation for your low iq problem
For example (IIRC) the overwhelming majority of repeat sadistic serial killers are white males.
http://maamodt.asp.radford.edu/Serial%20Killer%20Information%20Center/Serial%20Killer%20Statistics.pdf