Corporatism is a distinct concept from Capitalism. That's the one you're describing. There's been a psyop by Socialists to describe corporatism as capitalism so they get more of a merger of business and State (fascism).
Corporations are creations of a government in which governments get a cut and politicians get bribes in exchange for protection from justice for the corporate actors' crimes.
If you read Adam Smith he described this as Mercantilism in his time and recommended free market capitalism as its antidote with an emphasis on the accumulation of capital and investment into more competitive production.
Von Mises fleshed this out more a couple centuries later (followed by Hayek and Rothbard). The definitive work is /Man, Economy, and State/ which breaks it all down in tremendous detail.
Notably corporations in the early USA were limited to public works projects and had time-limited grants (e.g. for building a bridge or later the railroads).
JD Rockefeller bribed Congress during Reconstruction to make corporations permanent, so he wouldn't lose his charter for Standard Oil. He later wrote the Sherman Anti-trust Act to hurt his competition.
Today we have immortal psychopathic corporations with a legal mandate to be depraved and with legal personhood. The Dulles brothers created the CIA to fight wars and conduct assassinations on behalf of the corporations. cf. United Fruit or the Pepsi War.
After the Revolution remember to forbid corporations. The Gini Coefficient is too damn high.