The point is that it's a separate discussion, and that losing yourself in that discussion rather than adressing the material harm of the discrimination, is a problem.

And I get it, the discussion is deeply alluring. There is a deep amount of nuance involved. Your point about punctuality is begging for a response about how "punctuality is racist" looks dumb on the surface but belies a deeper point about polychronic cultures that has a lot of legitimate merit to it.

I'll refrain from giving you that full ramble lest I betray my original point, if you or a lurker wants it toss a reply and we can have a go. But note that your link uses a baity headline to grab your attention for a more nuanced point.