The politics instantly put the memo squarely at one side of the current cultural / political wars. With the current binaries in American politics right now, such will never lead to sober discussion.
Note that it doesn't imply or conclude that a given female applicant is less qualified than a given male candidate nor that the pipeline of female applicants is less qualified in aggregate than the pipeline of male applicants (because there's no reason to assume that the pipeline has the same distribution as the overall population).
It merely suggests that (assuming pertinent biological causes) we shouldn't expect a fair process to result in parity of outcomes.
Whether or not there are pertinent biological causes is a question I leave to scientists, but I do want to note that (contrary to Damore's critics), science has established biological sex differences that may be pertinent, and lots of scientists have validated Damore's position (that biological differences may explain some of the gender distribution in tech). https://www.psychologytoday.com/articles/201711/the-truth-ab...
Those people are right. The full text of the memo is readily available. The author not only didn't say this, but repeated numerous times that this was explicitly not what he was trying to communicate. There is no reasonable, charitable way to interpret those who misrepresent him.
I think this brings up an important point. Some people insist on painting this as a "diversity champions vs blithering racists/sexists" issue, ignoring the numerous legitimate criticisms for the current approach to diversity.