It's definitely a good question and a reason that, imo we should be allowed to have those off-topic conversations and meta-comments in those threads. Why not actually use those 'drama' threads to discuss that kind of stuff, where the algorithm pushes 'everyone' to see it? But I digress into possibly bannable material. To get back to the question you posed, pretty much what is, generally, agreed on by the PPC (PowerPosterConsensus) is that Parenti has uncontroversially the best takes on the nature of neoliberalism, communism, imperialism, fascism, and the nature of propaganda. I'd even go so far to say as even most of the anarchists on here agree with the majority of what he says. If there is one thing we agree on its that social democracy is basically the left-wing of fascism. As such, I'd basically say spam Parenti at them until they either leave or read it and ask questions about it.