While closing the Strait of Hormuz, even briefly, would hurt Saudi Arabia, Iraq and other Gulf oil exporters, the Saudis also ship oil via the Red Sea.
All of Iran’s exports and many of its imports of gasoline, food and consumer goods are shipped through the strait.
So, shut down the Strait of Hormuz and Iran has no money, no gas, no jet fuel, no diesel fuel, no food and no goods coming in.
Hummmm...
Iran also pizzes off all of it's OPEC neighbors for causing such an inconvenience.
Again, hummm...
Aside from a temporary bump in gas and oil (no, I don't believe that $150.00 bbl much less the 200.00 bbl crap) it is difficult to see the downside here.
If Iran really believes that is the way to go, the United States Navy is going to push a few buttons, launch a few aircraft and a significant portion of Iran's Navy will go the way of a fart in a hot tub. Gross and smelly for a few seconds, then things go back to normal.
The Kilo's might take a day or two longer...
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Iran can make just about all of that at home, and already does make most of it.
Nit: There is an export pipeline thru Turkey.
But, yes most of it is piped to ships at Kharg Island and then out thru the SoH.
Given Turkey’s position in NATO, that would probably also close. Turks and Iranians are in competition for domination of the region.