And Fwiw, those Gulf countries have more or less surrendered to US hegemony. They are for all intents and purposes part of the Pig Empire, even suppressing their own people to protect US financial interests in the region.
I am not for war, I do not think there are good wars; if I had my way I would dismantle every bomb on Earth.
But the idea that US backed regimes providing a launching point for the decimation of Iran are not legitimate military targets is nonsense.