It’s game over for people if AI gains legal personhood

Exactly. This is directly opposed to why we do AI in the first place. We want something to drive the Uber without earning a wage. Cheap factory workforce. Generate images without paying some artist $250... If we wanted that, we already have humans available, that's how the world was for quite some time now.

I'd say us giving AI human rights and reversing 99.9% of what it's intended for is less likely to happen than the robot apocalypse.