In a slightly different approach, this article contains numerous statements that are manifestly untrue and provable so in court. In particular, they can be proven false to the point that no reasonably diligent reporter could reasonably consider them to be true. In England he would have a pretty open and shut case for libel.
I am seriously disappointed in the Register as they normally take a stance of trying to present the truth. I won't join in with the general mudslinging except to say that I would love to find some anti-Damore article that actually presents actual evidence as after many hours of searching I have been unable to find even a single one. Since his memo is actually available it would be perfectly feasible for someone to point out any of his statements that is, in context, incorrect but nobody has bothered to do so.
All those attacking him are doing a serious disservice to their supposed objective of reducing discrimination as they are insisting that as a society we must ignore the real problems and focus on issues which are either largely resolved or barely ever existed. The current action against Google for discrimination against women is a symptom of this problem. If you ignore the real reasons that men end up getting paid more than women then you end up not doing anything about it.