Props to the Vox author for responding carefully and comprehensively to accusations of misrepresentation. I do wonder if it will make a difference, though, as the audience this piece is talking to and the audience Wax is addressing probably do not in any way overlap. Taking a step back, this seems to me like an inevitable response to the inevitable decline of the white majority. Losing their majority, those who most valued holding it seem to be going through the stages of grief. This appears to be the transition from anger to bargaining. (But maybe that's a generalization too broad to really capture what's happening.)
That's what really struck me about the article, as well. The precision of his response, and total avoidance of any of the typical name-calling and ad hominem attacks that seem to be the conservatives only remaining debate tools. He went high, and should be recognized for that.