No, I'm not. I didn't mention the word "biological", I'm not making any claim on what the underlying reasons for the distributions are. Does it have to be "clean" anyway? What does "clean" even mean? Do you believe society creates this distribution? If so, I'd be interested by which mechanism.

Secondly, heritability may only account for 40-60%, but that's more than zero. Now, how many percentage points do you suppose could be influenced by diversity programs over at Google?