And yes, I've read it. Just because he wrote some sentences that claimed he's in favor of diversity doesn't magically change the content of the rest of the memo.
If he was truly arguing in good faith, he should've stuck to actual, demonstrable examples of issues or problems caused by the existing diversity practices. There was no need to go on long rambling tangents about population statistics that even he acknowledges aren't really relevant to the topic:
> "Many of these differences are small and there’s significant overlap between men and women, so you can’t say anything about an individual given these population level distributions."
You'll note that most of the memo seems to be implying the opposite.