Upvoted because this is an interesting take, but I disagree at least somewhat. I think you should be wary whenever you've narrowed down your options to, "in order to solve the top-priority problem X, our only hope is solution Y."

I agree that some technological solution might be the key to dealing with the climate, and that maybe robots would be part of such a solution, maybe powered by similar techniques as the current wave of AI. It's not an insane scenario, but it's worth keeping your perspective open to other possible developments.