Sounds like the new generation is less uptight about old racial attitudes and the sanctity of the grievance mentality. Progress, in my book. I witnessed the same during my very young years between European ethnics that finally made peace through joshing instead of fighting.
To the grievance mongers: lighten up, Francis.
Well, politeness is a conservative value too. There are PC excesses, but that doesn’t mean people went around being obnoxiously rude before PC.