Here's the deal
IF there's a bell curve, and if men and women are slightly asked on their bell curves, then the fact Google recruits from the top 0.1% means that men will be massively overrepresented in their workforce. But actually not overrepresented at all, just more of them at the same talent level as women so more likely to be hired.
No judgement. No call on diversity. Just saying how it might have come about.