The way to fix it is to get back in Russia’s good graces, tell the US to fuck off, ditch neoliberalism and do what China is doing: massive state directed investment in industry, infrastructure and renewables (with a side of nuclear energy). None of which they are willing to do. And if they think the decline is just going to be a steady “slow agony”, they are also mistaken. Declines happen slow at first but they accelerate more and more as the system breaks down. Things will go very rapidly then.