Why are all the minorities good at running? The slow ones end up in jail
I know as well as you that many minorities are amazing runners and incredibly successful athletes.  But do you believe the other things that you say about minorities?
It's what I see, it is the truth. Minorities are in jail all the time
It's true that minorities make up a disproportionate share of the imprisoned population, I can see that myself from the data.  However, on a daily basis, I also see police officers harassing and arresting minorities for trivial offenses (or for nothing at all) while ignoring actual crimes committed by white people.  We shouldn't stereotype minorities as criminals just because they are unfairly treated as such.