Stratford has been mostly black for 20 years. That has nothing to do with it. Only lately have they been referred to as undisciplined and thugs. Johnson brought that attitude and lack of control, class, and sportsmanship and Smith is trying to change it but ain't there yet.
You never heard that mess with Pigue, Leach, Spears, or Campbell. They coached mostly black teams that played the game the right way.
And there are many white teams that are undisciplined, dirty, and thuggish too. I won't lower myself to name any here.