If what I heard is correct, there are 1,000,000 cops in America.
10,000 of them equals 1%.
I don't think there are 10,000 cops each year doing this kind of stuff.
I agree. I think there are far more than that.
I would say that the number of bad cops is-at least-50%. Quite possibly more.
Nope. That's as outlandish as your Rightist counterparts who say at least 50% of all black people are bad.
I would agree it's not 50%, but your analogy doesn't quite work. Your hypothetical race baiter would be claiming 50% (or whatever portion) of black people are "bad" because they're black. Bad police on the other hand are usually bad because they're trained to be.
In other words this is something where we can pinpoint a direct causation and fix it.
If we want to, that is. And the first step is to admit we have a problem.