is so fucked up that the future of the world depends on one single country, and more exactly, one single person in that country
This is an extreme exaggeration. Supposing you could wave a magic wand and zero out all US emissions and waste beginning in the year 2000, we’d still be just as fucked due to China and India’s emissions. And guess what, neither of those nations give a fuck about sticking to climate treaties. China manipulates its stats on virtually every useful metric, and India has a position that they deserve to finish industrializing.