Here’s a little thought experiment I came up with: let’s say the population of a large city under a communist government was suddenly transported back to prehistoric times. None of their technology came with them, only the knowledge in their brains. Let’s assume they survive, would they be able to keep living under some sort of Marxist-leninist/communist ideology? In the complete absence of technology, do you think a large scale communist society can be maintained, or would it necessarily have to dissolve into something more akin to “tribal communism”? Would the tribes they revert into start warring with each other for resources like actual prehistoric tribes did? Do you think the people in this situation would be able to hold on to communist ideals from a mental perspective, or would people start wanting a capitalist or other system?
Disclaimer: I have no way of proving any of this.
I think because of cultural inertia it would not be necessary to regress to a pre-communist form of social organisation. Plus I think with some tweaks a communist society would be better equipped to rebuild the means of production to raise the standard of living. I feel the current way of resorting to some aspects of capitalism to build up productive forces exists only because we live in a world where the capitalist countries have a hegemonic chokehold on the rest of the world. It would be important for the people as a collective to have a clear understanding of the history of political economy.