Greer was on an episode of Hermitix, the base/audience of which does seem to revere him. Don't remember anything from the interview, unfortunately.
But I wouldn't say that crowd is right wing proper, more like right wing by way of negating/critiquing the orthodox left. The Reluctant Right. The alt right could perhaps be figured as a wrong turn somewhere along the journey to this kind of ideological space. That is, in attempts to critique the left, can you manage to stay the course and not be overcome by resentment? Being overcome by resentment would amount to losing track of the kernel of egalite or whatever is supposed to lie at the heart of the left.
edit: losing the kernel would topple the dialectic and you'd be pulled into a partisan vortex. In this case, the alt-right vortex. Just speculating.
For what its worth I respect the podcast and have found several episodes fascinating. I think its a good example of independent scholarship.