From all the concern trolling I see in the other instances it's clear that there's no winning over these people. Everything is "Kremlin propaganda" to them. I do think a lot of chapos did go a little overboard with the PPB, but even thoughtful responses were met with the "hateful rhetoric" and "Kremlin talking points" BS. As always, it is to the Global South we must look to for any hope in the future...
I'd like to point out that ML is not some of natural "good" endpoint to political development. I'm not an ML ( though I think it was the right approach for Russia in 1917 for the most part) and am a strong advocate for a diversity of tendency even if that makes revolutionary discipline harder.