Reading back through your essay, it didn't really develop an argument, so much as point out our current economic model is sucking the planet dry and we need to redistribute the goodies to more of the population.
My point is that just patches the effects, it doesn't really get at the causes.
Lots of political movements sound good in theory, but in practice, they tend to devolve into power structures serving those at the center, as did Communism, or even Christianity, as expressed by the Catholic church. It's not just human nature, it's physics, as the postive feedback loops have no check, until they go way overboard.
Capitalism, as opposed to a market economy, is already centralized. It's just that rather than a one world government, it is a one world banking system. Which serves to siphon value out of the economy, society and the environment, rather than circulate it for the greater health of the planet.
We don't so much need a one world government, aka bureaucracy, as needing a better conceptual understanding of how nature functions, in order to better adapt to it, rather then think we can overpower it.
Monism does focus on the singular, but the One is only a node in the network giving rise to it. Organisms in the ecosystem.
Consider that even galaxies are nodes in the network of the cosmos and while we have this cosmology that assumes the entire universe is one entity, the theorists have since started to postulate multiverses, beyond this one.
The absolute, the flatline in the middle, the black hole at the center, the equilibrium of absolute zero, is in contrast to the infinite. Our monist beliefs focus on the point at the center, yet they don't look back through the wide angle lens, to the larger reality in which it is embedded.
Life evolves through cycles of expansion and consolidation, and organisms are structured around a center, in order to remain whole. Yet they are finite. Whatever has a beginning, has an ending. So organisms rise out of the ecosystem and settle back into it.
If we want to deal with that, we need to focus long term and invest value into communities and the environment, not just assume that when it is mined out, it will be shared around. The government, as the central nervous system of society, has to understand its role as more arbitor and referee, of the forces driving society. Much as our minds have to referee the various competing desires driving us. If it simply gives into immediate passions and needs, the larger system doesn't grow and progress to a longer term life span, but simply wallows in appetites that spiral into addictions.
We have a consumer culture that promotes every desire, in order to sell something. So it becomes a race, as everyone tries to outbid everyone else. Yet that burns out quickly. Like a higher metabolic rate ages more rapidly.
We need to be more like the turtle, than the rabbit, so nature can keep up and better recycle our effluence.
The rich and powerful are like the crest of a wave. They didn't create and don't power this society, but are simply the ones riding it. We need to understand causes and address them. Then the effects will flow from that.
People are linear and goal oriented, but nature is cyclical and circular.
Here is one of my essays, where I tried tying some of these threads together;
https://medium.com/predict/peeling-the-paradigm-1ceab7e774b0