First, read the memo
Let's get the ad hominem out of the way first. Just because the author has deemed James D'Amore to have a "privileged background" does not invalidate his arguments.
I urge anyone considering posting a comment to actually read and consider James D'Amore's memo.
D'Amore's main point is that Google's employees are not allowed to question the extent to which biological differences between men and women influence their distribution in various professions. There have been many studies of human gender difference, and it would be hard to argue that differences do not exist. D'Amore believes that the science should be considered, rather than denied, in order to improve equality of opportunity.