Half of them will vote to starve themselves so they can watch the other half starve, too.

I genuinely wish what you speak of happens should reality play out that way, but I think a lot of people will die with shit eating grins on their faces, even after they run out of shit to eat, because it means someone with blue hair is starving, too.

If you can build an AGI then a few billion autonomous exploding drones is no great difficulty.