If they wanted a war then they'd be bombing Iran right now.
They don't need to start a war that they have already won!
Here is another example of why:
You have a very distorted view of the world. The US has already won? What have they won? The opportunity to squander trillions killing millions in countries most Americans can’t pronounce or point to on a map?
The World Bank expects Iran’s economy to grow in 2020/21 and 2021/22.