It's incredibly depressing that the concept of "bias" has been shrunken down to solely mean "bad attitudes about an ethnic or gender ground" (and perhaps on the right, "bad attitudes about conservatives")

Bias could mean so, so many other things. Was the amyloid hypothesis incorrect? How should we use semicolons? How do you know when meetings waste more time than not? etc. People understand the world via mental shortcuts, via theory-rather-than-fact. We're stuck doing this because we're limited in so many ways. We are so biased about so many things, and this could interact in so many interesting ways. But damned if anyone cares about that. The only thing they seem to care about is how you feel about the "right" or "wrong" groups of people. It's a catastrophic waste of time and energy.