* Google is a profit-motivated entity. They have to act in the interest of their shareholders. Correcting for historical imbalances - to the extent that it negatively perverts hiring standards - doesn't factor into the calculus of a responsible corporation.
* Jews were systematically exterminated in a historical event that was even more recent than slavery. Countless more were left destitute. Why are they any less deserving of positive bias?
* There are millions of White people across the Midwest who are dirt poor because manufacturing is no longer a meaningful economic sector in this country. What about them?
And more generally, believing that there's a contemporary responsibility to correct for historical imbalances leads you down a fantastically absurd rabbit hole. We should instead be addressing the present socioeconomic condition (which will indirectly benefit many of the historically disenfranchised). And that is the job of government. Not corporations.