There is no such thing as "capitalism". That is a smear-word created by socialists to mis-describe the "system" (which isn't a system at all) wherein people are able to freely trade with each other. Commerce isn't a system, it's a human activity that has existed for all of human history.

So yes it is a cornerstone of socialism to falsely claim that (evil, greedy, immoral) "capitalists" exist, who "acquire capital" and in doing so "acquire power" as opposed to the (noble and virtuous) workers who are actually the ones that generate all the value, but who suffer at the hands of the evil greedy capitalists who exploit them and steal all that value.

Somehow we're meant to believe that despite these noble and virtuous workers generating all the value and far-outnumbering the evil, greedy capitalists, that the fact they haven't revolted and changed the system is because they're so oppressed and powerless (even though apparently they generate all value? what?).

It's just an incoherent mess of ideological nonsense. It puts people into two categories, even though actually most people are in both categories. Everyone with retirement savings (vast majority of people) is a "capitalist" and everyone with a job (vast majority of people) is a "worker".