The appreciation is appreciated. :-)

I'm actually vaguely unsatisfied with this. There's a stronger statement about this I feel like I could make, but I can't translate the strong version of this into words; the discussion so far has been an abstract cloud in my brain that isn't condensing properly into a properly pithy form (which is part of why I was long-winded there). It's where all of this ties back into my opening post - about how, historically, people have been utter rubbish at judging the relative merits of groups, and how a spectrum of beliefs about race is a stronger "group" identifier than skin color. But it's not condensing properly.