Except what if Ukraine bought energy from the European-United States global power grid instead of importing gas/oil from Russia? That's cripple the Russian economy even more.
How losing a badly mannered and badly behaved customer who constantly reneges on payment obligations, spreads russophobia (better to say: trades in it) would cripple Russian economy, especially after Turkish stream already started?
European-United States global power grid - what is that? Buying Yamal gas on our Far North and delivering to Poland in tankers?
Or bringing Qatar gas and saying "it's American"?
To pass electricity on that hypothetical grid, one needs to generate it first.
2nd question: how Ukraine will pay for that energy, with it's deforestation selling all it's trees, or by selling even more russophobia and buying even more weapons?
Ukraine cannot be even properly privatized, because of Nazi batallions of far-right schizos roaming it freely. It's worse there than it was in the 90-ies in Russia.
America has complete and utter sea and air superiority from a military perspective. There is no nation in this world that can stand against the mighty naval and air capacities of the United States.
Except... Syria? How all this helped to overthrow Asad?