Cyberpunk arcologies are supposed to be bad because of the *punk* part of cyberpunk - they are supposed to be imposing, alienating, totally dependent on the hyper capitalist techno dystopia the world might still become.

Snowpiercer was still cool. And I also hope that future arcologies - if we need them - are more humanistic in scale and more compatible with the environment. I think it's totally possible to live in harmony with the environment without maximizing square footage efficiency, but we still need to reduce how much land is needed to support western standards of living - honestly, veganism would help way more than reducing the urban environment to absolute minimum footprint. If space colonization is something future communist people want they'll still need those principles of arcology just so they don't have to launch much material into space so it's still important to study that kind of stuff and try it out in a safe environment (earth) where you don't die if a system fails and can just open airlocks and ship in food and water if absolutely needed.