History of Fifteen Centuries Cool OP. The trajectory seems largely right - the decoupling of corporations from market forces is exactly right and is already at work. It is indeed the most dangerous trend that we're seeing take shape right now. And this is just the end result of the core logic of capitalism: that of self-valourizing capital, capital begetting more capital, decoupled from all material processes. Hence the explosion of speculative and financial markets.
But it's very jarring to see socialism as being named as complicit in this process. Socialism's economic principles have always lent themselves to the dilution of corporate power, not its concentration. The 'opression' you decry - which is real - is not a function of any 'socialist' capture of the state; quite the opposite, it follows from the
corporate capture of state power.
You might be interested in Jodi Dean's diagnosis of a coming neo-Feudalism, which seems very much in line with what you write here: "Under neofeudalism, the directly political character of society reasserts itself. Global financial institutions and digital technology platforms use debt to redistribute wealth from the world’s poorest to the richest. Nation-states promote and protect specific private corporations. Political power is exercised with and as economic power, not only taxes but fines, liens, asset seizures, licenses, patents, jurisdictions, and borders. At the same time, economic power shields those who wield it from the reach of state law. Ten percent of global wealth is hoarded in off-shore accounts to avoid taxation
...Just as feudal relations persisted under capitalism so do capitalist relations of production and exploitation continue under neofeudalism. The difference is that non-capitalist dimensions of production — expropriation, domination, and force — have become stronger to such an extent that it no longer makes sense to posit free and equal actors meeting in the labor market even as a governing fiction. It means that rent and debt feature as or more heavily in accumulation than profit, and that work increasingly exceeds the wage relation. What happens when capitalism is global? It turns in on itself, generating, enclosing, and mining features of human life through digital networks and mass personalized media. This self-cannibalization produces new lords and serfs, vast fortunes and extreme inequality, and the parcellated sovereignties that secure this inequality while the many wander and languish in the hinterlands."
https://lareviewofbooks.org/article/neofeudalism-the-end-of-capitalism/