To clarify: you are aware that, prior to the memo, Google already a lawsuit on their hands from the Department of Labor with regards to alleged gender discrimination?
https://phys.org/news/2015-01-apple-google-settlement-high-t...
Google is accused of a "left wing bias" by many defenders of the manifesto and the writer himself. And yet, they don't want to turn over information that they're fairly hiring, firing and paying wages fairly?
How is being sly and secretive about your hiring practices and wage information "left wing"? Hardly seems consistent with the idea of supporting worker rights.
So how does Google (not to mention, it is a capitalist organisation) have a "left wing bias", as they say?
I see no evidence for it.
Then Google should cough up the data. But they won't, because they're hiding malfeasance.