A person accused of "unintentional racism" is, in my mind, not guilty. There has to be an intent to disparage behind the comment/remark for the speaker to be racist in act.

Tell someone who said they felt "gypped" that they are disparaging Gypsies and they might have no clue that they were doing so. Are they nonetheless racist?

I give them a pass. But I'm white so maybe I am not sensitive enough to these issues.

> the modern American so-called left engages in constantly

I associate with the "left", am "left", not aware of anyone in my circles engaging in that sort of language policing.