> I trust that future AI can be more unbiased and benevolent than any of our current human leaders.
... on what basis? Morality is learned trait, and we had plenty of examples of entities that thought they were moral "in greater scheme of things" and made plenty of atrocities along the way.
What if AI decides outright unfettered slaughter is the way to better future ? What if AI went "okay, this country has been pain in the neck of entire world for too long" and nuke it ?