Sure if they use strait closures the same way Trump uses tariffs, everyone will try to not use it. But if they just collect fees that are cheaper than alternatives, ships will keep on going through.

We would just blockade it then as we are now. Iran gets no money and doesn’t get to sell oil. They’ve already demonstrated that they use the Straight in the same way Trump uses tariffs. As you know, businesses don’t like uncertainty and it’s uncertain what whims or random “fees” or demands Iran will have in the future.