The Expanse's final season was a projection of our times 300 years into the future

Pajiba

"The Expanse, like any great speculative fiction, is about our times," says Alberto Cox Délano. "It couldn’t be any clearer what the intentions of the writers’ are because it’s not even a metaphor, it’s just a projection of our times 300 years into the future: The Earth embodying the United States and other first world countries, Mars as China or other superpowers built around a single purpose (like the USSR back in the day) and the Belt as the underserved and exploited diversity that is the Developing World. It’s not a metaphor without nuances that also reflect our times: Earth/The U.N. is unable to provide for most of its inhabitants more than the bare minimum; Mars is fanatical, paranoid and is built on staggering corruption; and the Belt … well the Belters are awesome, but having defined so much of their identity in opposition to the Earth and Mars, they risk sabotaging themselves."