The problem is not use, the problem is extraction. If it comes out of the ground, it gets used, and mostly ends up in the atmosphere. The volume of extracted fossil fuels is carefully managed so that prices remain low enough to prevent green alternatives from winning in the market, and high enough to maximize long term revenue. If extraction would decline, fossil fuel prices would rise, and the market would automatically rebalance into a green transition.
Really the only thing politicians need to do is put in place a global and declining cap on fossil fuel extraction. Wells need to be capped even when they’re not empty. There should be zero new drilling. You can tell the honest intentions of a politician on climate change by their policies on fossil fuel extraction.
And this means ultimately it is a political problem, not an individual problem, and can be fixed through the voting booth. But that requires people to consider this the most important problem, and they don’t. So ultimately, the reason things don’t change is not some cabal, but just plain people not prioritizing it in the voting booth.