40% of global ship traffic is simply moving fossil fuels around! Renewables make much of this traffic obsolete
That means fuel will continue to get more expensive as other markets switch to renewable energy sources. That in turn will reduce the number of ships which will make the fuel harder to find, which will reduce the number of products using that fuel, which will eventually result in total elimination of that market.

Unless it’s officially propped up by governments at the behest of rich and powerful fossil fuel lobbies!

It’s inevitable that it will end some day, but not nearly as fast as it otherwise organically would.