[jjk166]

The big issue with alternative routes is that they don't really solve the problem. Ports in Oman and Yemen outside the persian gulf are still close enough to Iran to be subject to attack by drones and missiles. Saudi Arabia has invested considerably into pipelines to the Red Sea but Iranian-backed Houthis can strike there. Even if there was a safe port somewhere, the pipelines themselves would be easy targets. There's a reason no alternative route has been pursued over the decades.

The most economical option is to just invest in the military technologies to pass through the Strait. Minesweepers, missile defenses, an appropriate number of escort frigates - an appropriate naval force could most certainly escort ships through. It's just incredibly dumb to start a war with an adversary that has been threatening to close a major waterway for decades immediately after decommissioning your minesweeper fleet and while there are zero frigates in your navy.