Related full tweet:
The United States of America is in serious discussions with A NEW, AND MORE REASONABLE, REGIME to end our Military Operations in Iran. Great progress has been made but, if for any reason a deal is not shortly reached, which it probably will be, and if the Hormuz Strait is not immediately “Open for Business,” we will conclude our lovely “stay” in Iran by blowing up and completely obliterating all of their Electric Generating Plants, Oil Wells and Kharg Island (and possibly all desalinization plants!), which we have purposefully not yet “touched.” This will be in retribution for our many soldiers, and others, that Iran has butchered and killed over the old Regime’s 47 year “Reign of Terror.” Thank you for your attention to this matter. President DONALD J. TRUMP
Which would lead to Iran attacking them in the Arab countries, and Iran can actually manage without those plants as they have water resources to cover 90% of their needs. The Arab countries are 10 times more dependent, and would run out of water in less than 14 days without those plants. UAE and Saudi Arabia are really not habitable countries without desalination plants.
If USA attack desalination plants, they will only make it worse.