Your ‘off ramp’ is that you order the troops to come home and just fucking leave. How hard is that?

Oh, but you need a ‘win’ to massage your ego about it? Well, when has the truth ever stopped you? Just fucking lie about it. Tell your idiot followers that you won and Iran is completely destroyed. The ones who are still with you at this point will buy it. They’ll cheer, and then you can feel good about winning and move on to the next disastrously idiotic idea that some sycophant whispers in your ear.