The problem is that we need them to be, or we’re all going to die (of fire, pollution, flooding, food shortages, etc.)
To see what I mean, try to buy a 6” diameter PVC sewer pipe. A large percentage of global PVC is still offline due to the Texas freeze last winter. This is causing road work and repairs to ground to a halt.
At the current rate of industrial collapse, how long until water treatment and other life-critical industries go offline?
But to really answer your question:
1) We invest in tech and scale up to make renewable energy cheaper than fossil fuel. Other countries will benefit from our scale and tech improvements, reducing the relative competitiveness of fossil fuels.
2) ban production and exports of fossil fuels. Instead, actually export clean energy in the form of ammonia/nitrate fertilizer (from green hydrogen), liquid hydrogen, perhaps synthesized LNG, synth fuels, clean electricity.
3) border adjustments and a CO2-based import tarrif.
4) cultural imperialism making clean energy good (fast electric cars are an excellent example) and fossil fuels unpalatable.
5) International agreements and treaties.
6) tied to that, maybe targeted aid contingent on climate action.
What we need is to make electric vehicles (including PHEVs) like 80-100% of our vehicle mix, not ~1% for current cars on the road or 2-4% of new vehicles. Then oil prices wouldn't matter so much politically (it'll still affect industry, but that's much less impactful politically compared to motor gasoline prices).
As far as Germany approving a pipeline with Russia, well... I agree it's pretty dumb. Germany needs to just end their coal entirely, which in the very near term means more gas, but they should also try to reverse the closure of nuclear power plants.