No such button exists, and it's increasingly clear that this war will leave the entire world far worse off while further entrenching the current Iranian regime.
Iranian regime wasn't doing that well even when it wasn't actively bombed. And "rally around the flag" only goes so far in a country that has been killing protestors by the thousands.
I don't see this war ruining Iran's regime overnight as is. But if it comes up with a sustained effort to pressure Iran, or a ground operation to topple the regime directly, it well might.