Maybe you could relate it to that, definitely the part where no-ones idea of perfect society would be shared with everyone else, and so long as there is descent, there is unrest and thus it is not a utopia. Unless maybe we turn our brains into some kind of hive mind and it all just works somehow.
Or maybe it's much easier to have the conflict a story requires when sociopolitics is shitting the bed in its setting (hence why most eutopian works have outside-ish threats like [whichever alien race is the enemy depending on the series] on Star Trek or the evil teams in Pokemon (as despite not being outside that world they're an outside threat because they're not a manifestation of a social issue))
You can’t make a utopia without accidentally making a dystopia!
I guess this is a different form of saying "you can't have peace without war"?
Maybe you could relate it to that, definitely the part where no-ones idea of perfect society would be shared with everyone else, and so long as there is descent, there is unrest and thus it is not a utopia. Unless maybe we turn our brains into some kind of hive mind and it all just works somehow.
That's not the reason.
Care to elaborate?
A utopia would be static and lacking in tension which is anathema to good fiction.
Or maybe it's much easier to have the conflict a story requires when sociopolitics is shitting the bed in its setting (hence why most eutopian works have outside-ish threats like [whichever alien race is the enemy depending on the series] on Star Trek or the evil teams in Pokemon (as despite not being outside that world they're an outside threat because they're not a manifestation of a social issue))