I do remember years ago having a fairly similar discussion with Loren regarding women's equality. IIRC, his position was that the wage gap was no bid deal, it's just because women take time off to have babies. When I pointed out that women who DO NOT have babies ALSO get paid less, he seemed to think that was okay, because it's reasonable for an employer to assume that a female employee *might* have a baby, and thus she wasn't as good an investment as a male employee would be.
This really doesn't seem to be a different argument.
Just because you don't like reality doesn't make it go away.