The challenges of "messy politics" and rigid habits of existing carbon emitters pale in comparison to reactive solutions. For example, it'd be far, far cheaper

The challenges of "messy politics" and rigid habits of existing carbon emitters pale in comparison to reactive solutions. For example, it'd be far, far cheaper to forcibly take over the world and shut down every carbon emitting machine than to find another planet and terraform it. Surely we're collectively smart enough to find a global solution to this in the near future, given that our resources are appropriately allocated.