The characters speak a mix of English and Chinese, they curse in Chinese!
I forgot where I saw it said or speculated that The Alliance was some kind of alliance between the USA and China, I dunno if I buy that.
Some speculation I’ve seen is that at some point in the shows future China becomes the major super power nation, and that much like the settling of the western US settlers were poor people which explains the cast. But that makes no sense, you don’t even see any ethnically Chinese people on Alliance cruisers or rich worlds like Ariel.
So did they ever explain what was the deal?