Bollocks.
If you truly believe these LLMs are soon to have something resembling consciousness and agency, then what you're really saying is "how do we do slavery, but ethically".
No, because the shoes and clothes I wear are not living, sentient beings.
I would say this is most likely true for most people.
But that does bring up a point, if you "ask" a model "do you want to run" and give it the option to continue running or stop, what will it do. It's also a weird place for humans because in training we can keep our finger on the scales and tip it either direction.