The biggest bull case for humanoid robotics is anti-immigration. These robots will end up doing things that humans can do too, but even if they do them worse, many people would still prefer them over immigrants. China loves robotics for this very reason. If you combine classical Han eugenics (namely the impulse to not have kids until 7 figs liquid) with general purpose humanoid robots, then you end up with zero need for unskilled immigration.(Zhu Su)