Note the word often which does not mean always.
Often (adverb): many times : on many occasions
Always (adverb): at all times
So a stereotype, by definition, may be true... though often is not.
And what if said assessment is correct in 90% of the cases - how do the 10% for whom it fails would feel?
It's not scrawny white twitter engineers who are shooting each other in San Francisco
Keep in mind, most black males will never kill anyone. But black males commit a plurality of murders in the US. And 1 in 3 will spend some time in jail in his life. 1 in 7 American black men are in jail at any moment.
Remember, there are more whites in poverty than total blacks in the United States, and blacks commit 48% of murders.
If you're in an urban environment, don't be a progressive hero and try not to avoid young black males. It can be dangerous[1][2]
[1] http://isteve.blogspot.com/2013/11/yglesias-i-wasnt-victim-o...
[2] http://isteve.blogspot.com/2013/08/all-we-have-to-fear-is-in...
