We did pretty well a decade ago with sanctions against Iran, but that coalition began showing cracks because of oil and gas. And the focus was more on slowing Iran's nuclear program than trying to end Iran's proxies. However, the financial implications of the sanctions weakened the proxies even if they weren't the target.
So, sanctions could work again to stop the proxies. But when Western countries need natural resources and profits can be made by dealing with Iran, putting together sanctions seems improbable. And I don't think very many countries are interested in escalating things in the middle east. The world, I think, is pretty satisfied with the status quo and with Russian oil and gas offline, middle east oil and gas becomes more vital to Western interests. This is especially true in the US where the administration can't afford a spike in oil and gas prices before elections. But the same could be said in Germany or the UK or a whole host of other countries at other times during the year.
So, this is a long-winded way to say that the world is fine with sanctions in theory but it won't jointly attack Iran if Iran is a bad actor. And sanctions won't happen because money and consequences.