>Human society exists because we value humans, full stop.

Eh, human society exists because it is an emergent behavior of the evolutionary advantage afforded at the time of adoption by the human species. There is on iron rule stating that it must continue into the future, or even that it can exist into the future.

More so, the value of a human has wildly fluctuated over history and culture. The village chief, nobles, the king were all high value humans. The villagers would be middle to low value, and others may be considered no value.

The industrial age began to change this some as value started to move from the merchant class to the villager class as many high production jobs needed less and less training to complete. With industrialization businesses running machines and production lines needed as many people as they could get. Still human rights were hard fought in places like America where labor wars broke out.

In the modern US we've setup a dangerous set of idealism that will most likely end in disaster because they are in conflict with general human values. That is the "pull yourself up by your bootstraps", "Any collective action is communism and communism will turn you into a pillar of salt if you dare look at it", and "greed is good". Couple that with TV media and social media owned by rich billionaires you're not going to see much serious opposition to these ideals.

But if/as labor loses it's values, so will the humans that performed that labor. After decades of optimizing human society for maximal capital extraction, values are dead, and the ever present thought police owned by the rich will make sure you don't cause too much trouble by resurrecting them.