NBA? Football? Hollywood? And as I said, model agencies?

Many physical attributes are absolutely relevant for a given context.

What we should do, is getting rid of irrelevant and abhorrent discrimination, such as racial selection.

That's a meaningless statement. Bigots of the past all felt their personal prejudices were absolutely relevant, and didn't find the discrimination they practiced at all irrelevant or abhorrent.

Society made progress only because people fought against that. They were all accused of fighting against nature, but over time, more people realized those old standards weren't as "natural" as they were once thought to be.

Do you imagine we've reached the pinnacle of human social evolution and tolerance? Perhaps we still have similar lessons to learn, and people of the future will consider our behavior as abhorrent as we consider the 1800s.

Let's agree to disagree. I'm talking about physical discrimination being not simply valid by the standards of our time, but unavoidable, depending on the context. Short people can't play in the NBA, because they can't compete with bigger players.

The only progress that could push society past that, is genetic engineering. Everyone on equal footing or so different, that sport as we know it ceases to exist.

I agree that we can't end all inequalities anytime soon. Men still can't bear children, and women still bear the burden of doing so. Etc.

But that's no reason not to eliminate discrimination when we can.