[vertex-four]

There is no reason to discuss it in a way which you think requires a manifesto as a preface unless you think they should be ended or severely cut down in some way. And the author quite obviously does think that. So yes, taking it as the first step in an attack on diversity programs is perfectly reasonable. Most people are perfectly happy to talk about them with someone who didn't come up to them with the pre-formed argument that they should be scrapped or that they're harmful.