He skates at the edge of the line without crossing over, and it’s hard to pin anything on him. My main suspicion, and it’s only that, is that he so consistently skates at the edge. I wouldn’t say toxic, though. Still, he has nothing to do with Trump, and repudiating him would have been unnecessary, except that he’s a distraction and the MSM is putting the onus on Trump.
I think he goes over the line with statements like “...America was, until this past generation, a White country, designed for ourselves and our posterity....It is our creation, it is our inheritance, and it belongs to us.” Also the bit about Europeans being the very concept of world history. And of course the “Hail” stuff at the very end. Plus, as you mention, when he’s not crossing the line he seems to be intentionally skating at the edge.