Why is the option of Arabs only to retaliate to Iran ? Why can't they oppose/retaliate to israel for a change ? Israel is the problem here, not Iran.
Why can't the Gulf states protest against israel/US for using their airspace to wage this war ? Or at least disallow the use of their airspace at the least ?
They either can't or don't want to. In either case Iran is taking care of the US bases and the ability of US to use their airspaces.
As for "Muslim countries fighting each other", that is just a matter of cosmetics for people who are not being bombed to destruction in Palestine, Lebanon, Syria & Libya, etc. Iran is taking care of the problem and if a few gulf states feel inconvenienced about the US bases being attacked and want to retaliate back for it, then that validates the whole argument of Iran.