A long and dense work on economic theory has nothing to do with "political expedience" simply because it's not the best place to learn about someone's political views. Marx's political views are summarized in "The Communist Manifesto". It's short and readable, so read that one If you want to see for yourself that Marx was an autoritarian shithead. Then the reaction of Twitter personalities to Marx might make more sense.

This is how leftists use the word "freedom", but that roughly corresponds to libertarian (or all rightists?) usage of "optionality". For libertarians, "freedom" means the absense of coercion, as in being left alone. The leftists don't seem to understand how offensive their attempts to redefine "freedom" are, especially as no replacement word is offered. In this example, "freedom is participation in power" sounds roughly as "we're never going to leave you alone so we'll just give you a useless vote and proclaim that it makes you free".

Das Kapital was written well into the gold standard century (1815-1914). The problem of separating money from the state could not exist back then in any form that resembles the present situation.

from the comments:

My guess is that about 50% of his directional (that is, either up or down) observations have played out perfectly (for example, he said up and it went up), while the other 50% of his directional observations have played out in the perfectly opposite direction.