[dragonwriter]

It's just possible to read it as a poorly written attempt to say that the Left ignores science on biological IQ differences (perhaps, as is quite popular to point to on the Right, those associated with race) and also biological sex differences, rather than it being intended to refer to biological, sex-linked, IQ differences.

[UncleMeat]

If we charitably assume that the entire thing is poorly written then it can mean anything we want!

If you write something that people interpret as sexist due to your poor language and then spend no effort to correct that error.... that's still bad.

[ThomPete]

All it requires is that you read it in its full context. Read the memo. Then it's fairly obvious what he is talking about.