AGI will, as I said, make many things possible. It will be possible to keep a human being alive forever and suspend them in a state of pure pain for eternity. It will be possible to extract memories and information from the human brain. It will be possible to control human behavior with invasive brain surgery. Imagine every grotesque thing that you can do to a human being — it’s on the table for AGI enabled governments in the early days if that’s how it plays out. And that’s just one slice in the infinite pie of grotesque possibilities. You can’t just opt out of these things if they provide a material advantage to your country/meta organism.
Biological brains are incredibly complex and if that level of complexity is needed to host intelligence I think we're a long ways off from building any true AGI, even if we pumped every bit of engineering skill our society has at it. And even if we _can_ build AGI I doubt we'd have the resources to host more than a handful of them for years to decades after their creation or that their intelligence would be anywhere near small mammal level.