You can shoot them. But also, you can just stop sending them to space. It’s not like an AI will build and control space ships to replace and maintain its network in space… It’s sort of absurd how human agency is ignored in all those sci-fi scenarios

Do you feel like you have much agency in the economic and political systems that rule our lives? The problem does indeed always come down to humans, but the specific humans with the most agency are generally quite eager to take away the agency of everyone else to increase their own share. And by the time they themselves are actually affected, it's generally too late.