It's a dog whistle that directly relates not only to a history of black minstrels
But also to the violence and mass murder of black Americans it lead to
It is not unlike saying to a Jewish person that they should get a yellow star lapel pin. Sure there is nothing wrong with stars, star pins of any color, but to say that to a Jewish person is not without context. And a claim of ignorance is not a excuse.
"You must spread some reputation around before....."