What about non-Americans and non-American human culture in the Matrix universe?

Zion, the Last Human City we see in the Matrix series, is remarkably multiracial for a city as shown as US fictional visual media. But despite the variety of races present in Zion, they do seem to all be invariably from the US. All of Zion's recruitment efforts seem to be concentrated in the US parts of the Matrix, and all Redpills we see also seem to be from the same general location in the world.

Now, the Doylist explanation is clear, in that The Matrix is a piece of fiction made by USians for a primarily USian audience, so the focus is as expected.

But is there an in-universe explanation for it? Are all the redpills in Matrix English-speaking/culturally American(ish)? Does Zion really recruit people primarily from US-Matrix or are there in fact people from elsewhere in Zion that we just never see? Are there culturally Chinese or Indian or Ethiopian equivalents of Zion elsewhere on Earth who are just as much in the dark about Zion as Zion is of them?

We see programs who affect the mannerisms of people from other cultures (the Merovingian and Persephone, Rama-Kendra and Sati, Seraph etc) but all these examples are in fact sentient programs who've voluntarily chosen and taken up human 'covers' to live in the Matrix. But what about actual humans who live in and identify with those other cultures in the Matrix?

Info from all canonical expanded universe sources in welcome :)