> unless you control the stack down to the hardware, it's basically a one way ticket to eternal slavery

Only if mind uploads are economically viable, which I doubt they ever will be. Organic brains are very efficient machines and it is far from clear that whole brain emulation could reproduce someone's intellect and consciousness within a smaller energy budget, or even accelerate it. The brain's behavior is so precisely adapted to its wetware that the emulation would have to reproduce many physical processes that are ultimately irrelevant to general cognition in order to not break the delicate equilibrium of the thing. The overhead would be gigantic.

Better just train from first principles, focusing on capabilities and skipping consciousness altogether. We can already see where this is going: LLMs in their current state would obsolete mmacevedo on many tasks. More likely than not, when it is possible to emulate brains, they will be terribly expensive, run like crap, and the only people interested in running them will be whoever had their own brains scanned.