The war is lost, so a conditional surrender is the best option. Otherwise you're just Hitler in his bunker, dreaming of fantasy armies that will save the day and throwing away even more lives to make a futile point.
The fossil fuels industry won. It entrenched itself into the corridors of power and mindset of Americans years ago so successfully that it cannot be uprooted. There is literally nothing that the Democrats can do. About 40-45% of the USA is convinced they're a bunch of un-American, woke, wimpy, naive, liberal, communist fascists who'll destroy the country. The Democrats can argue for total, immediate eradication of fossil fuels, and all that's going to do is make that 40-45% of the USA even more determined to kick them out of government, lavishly funded by the enormously rich and powerful fossil fuel companies put at threat.