It's retroactive offense.
It is covered under the Congressional Black Caucus' grandfather clause. It allows them to be selectively offended by things that they didn't realize were offensive.
It also allows them to be offended by anyone who uses or used the terms "Black" or "Negro" without acknowledging the irony of the titles, "Congressional Black Caucus" and "United Negro College Fund"
Thanks for helping me out with this. I didn’t realize there was a grandfather clause.