[pugets]

I agree with all of that, but I think you’re making the case that leftists are in fact averse to debate. If an outsider can’t interact with a couple people on social media without having already read all the important literature and knowing the “established” answers to pesky questions like “why do attempts at establishing communism so often result in authoritarian conditions,” then the community is not open to being prodded. Many of these communities are intentionally insular. Why would they be open to people questioning their philosophy when most of society does that already?