Your worry appears to be that the trillions of tons of fossil fuels still being mined under continued massive government subsidy will prove insufficient to fuel

Your worry appears to be that the trillions of tons of fossil fuels still being mined under continued massive government subsidy will prove insufficient to fuel construction of the renewable-energy generation equipment we need. Nobody else is worried about this, for reasons. The much bigger problem is continued massive government subsidy of this mining, which thereby suppresses energy prices and sabotages access to capital to build out that equipment, and the factories to produce it, diverts cash flow to those mining and refining the materials, and accelerates climate disaster.