the idea of humanity merging into a singlular mutt race through perpetual mixing sounds like some meme "utopian" sci-fi fantasy more than a plausible reality even if global migration shifts and racemixxing continue for centuries, isolated communities will likely persist preventing complete homogenization moreover, even if humanity were to fully mix to erase racial distinctions, systemic collapses (whether on earth or in a far-future civilization on another planet like mars) would likely reintroduce isolation such disruptions would create new differences over time, leading to the emergence of distinct groups once again because "race = difference" is environmental adaptation, and different environments will always exist
Sweden