We already saw that the dome cannot intercept Iranian missiles just days ago. Also, the math doesn't work in favor of the dome given that they need 2 interceptors per missile. There's also the issue of production capacity. Once it runs through the existing stockpiles of interceptors, making new ones at the rate they’re being consumed is not possible. For example, from 2008 to present, Lockheed Martin was able to produce 800 missiles, around 50 a year. https://armyrecognition.com/news/army-news/2023/lockheed-martin-announces-delivery-of-800th-thaad-interceptor-missile-system

To counter the 180 missiles Iran reportedly launched, requiring up to 2 interceptors each, would have exhausted nearly HALF of all THAAD missiles ever produced. And that’s assuming there are enough launchers to even fire that many interceptors at once. The US is completely unprepared for the scale of war it is provoking around the globe.

Iran can absolutely cripple Israel by destroying its energy infrastructure.