To have a bare minimum of an idea of what was Marx talking about, I'd recommend reading at least "Wage Labour and Capital". Judging from how many strawmans of Marx's take on Labour Theory of Value are out there, I'm fairly sure it can't be guessed from context.
Source: lived in the USSR
Dunno, with all the awful things that your rulers have done, I think that if the impotent Tsarist Russia has survived into the WWII, I'd be speaking German at the very best.
As for Auschwitz, nice strawman. Stalin and Lenin have blood of millions on their hands, no need to bring up something unrelated.
[1] I know people IRL who claim Poland should have teamed up with Hitler against USSR and then double-crossed him, but I have doubts it would work.
EDIT: I re-read the above conversation, and I'm still not sure how did I end up defending USSR in the name of a discussion boiling down to "do you prefer plague or leprosy?" I don't think we really disagree all that much, so I'm out, thanks for conversation.
And on the back of clueless intellectuals like Marcuse you have today's pseudo-intellectuals (including people like Peterson) who ignore the big marxist elephant in the room: the fact that poor people are being exploited by the rich to this very day, instead they are focusing their intellectual "fights" on irrelevant things (like being a feminist or an anti-feminist).
To point back to the article, we have no Zola of our times.
Not that Nazism and Communism are equivalent. The later at least has some non-evil implementations - there is a wide difference between unironic Stalinists who see murdering anyone slightly better off as a solution and those who think "Hey we can try to provide a good standard of living with worker owned cooperatives". Even if the latter is doomed to failure it is in no way equivalent to Nazis or even Stalinist "cousins".
I also really do believe that today's public intellectuals are ignoring the blight of the majority of the people inhabiting this planet, being they men or women (like I said, we have no Zola of our time). I'd be happy to be proven wrong in which with case I'm eager for book recommendations.
Honestly, I'm pretty taken down by comments such as yours, with general statements that point at nothing in particular (again, what does "X" mean?) in response to a comment like mine that directly mentions two or three things included in TFA (Peterson, Zola, Marx and public intellectuals generally speaking). I expect better from the HN public.
Literally any topic that one might try to have an intellectual debate about.
In this case, you're choosing "Marxism", but my point is far more general than that. If you're going to stand up and publicly make arguments about feminism, dark energy, protecting endangered species, the rise of China, post-impressionism... the very least you can do is enough background reading to not make a fool of yourself.
Contrary to your assertion that "accusing a non-marxist that he is clueless about marxism is not that big of a thing", I am saying that being clueless about the very thing you've arrogantly stood up to talk about in public is a big deal and should be humiliating.
I don't think you and I actually disagree that Peterson is an embarrassment.