I think it mostly has to do with how dominant he has become in social media algorithms. Once he is in your feeds he doesn’t go away and he is everywhere. While most other Twitter twats are only on twitter.
But I think you still have a point. And again, I think the social media algorithm has a lot to do with it. His interview with Joe Rogan make him part of the rabbit hole that leads to all these right wing nutheads. I always try hard to get rid of Joe Rogan, Piers Morgan, and Jordan Peterson from my feeds. But whenever NGT pops up it only takes a while for them to reappear as well.
Which makes me believe he will appear in the feeds of people who do like this right wing content. And they probably will judge him harsher for being black.