Monocultural

Because monocultural societies do not exist in reality, ethnostates are inherently oppressive.

Hopefully our world will never become monolingual, monocultural or monochromatic!

I hope our world won't become monolingual, monocultural, monochrome.

Near-synonyms: monocultured; axenic

A false idea has taken hold in MAGAdom about the movement’s supposed monocultural superiority.