The tendency for the type of capitalism dreamed of by the petit bourgeoisie to give way to "crony capitalism" is built into the system. The only way for the petit bourgeoisie's vision of capitalism to be realized is to massively decentralize and deindustrialize society into something resembling early 19th century America. And even that was predicated upon ethnic cleansing and settler colonialism, as well as slave labor.
You don't have nearly enough cases to use as evidence to say "all socialist societies give way to capital invariably." The fight for socialism is a
global fight. Socialism in one country is not possible. And the first successful revolution that came anywhere close to being in the interests of the working class was less than 100 years ago (the Russian Revolution). But we got nikkas talking about "invariably"
"'Freeman and slave, patrician and plebian, lord and serf, guild-master and journeyman, in a word, oppressor and oppressed, stood in constant opposition to one another, carried on an uninterrupted, now hidden, now open fight,
a fight that each time ended, either in a revolutionary reconstitution of society at large, or in the common ruin of the contending classes."
So, no, we should not be discussing where we can meet in the middle. We need to be discussing how to
solve the problem once and for all, to move past this fukkery and toward a liberated future.