Because they're fascists with a thin coat of red paint.
That's horseshoe theory, you filthy heretic!
It's also stethoscope theory, which is much more plausible:
Looks like a way to paint your beliefs as the good ones, and if you have to enforce them on everyone else for their own good, so be it.
Mandatory
USA bad, USA supports Ukraine, Ukraine fights against Russia, therefore Russia good
Campism. All evil comes from the Washington liberal-capitalist consensus, therefore anyone who stands against Washington and its allies is on the side of the Revolution, even if they’re the Taliban or someone.
Some of them think that communism is so perfect that any communist state (i.e. a state that plans to build communism one day, but doesn't claim to have done so yet) can't backtrack and will only get closer and closer to communism over time. Claims that Russia is no longer communist, and is just an authoritarian capitalist oligarchy, must therefore be lies made up by the west to trick people into not trying to build communism here. Russian troll farms will find communities of people who think this, and make posts agreeing with them and telling them that everyone's super happy in Russia and anything bad is made up.
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