Iran has illicitly sold China $38B worth of oil since 2021. The PRC is principally responsible for keeping Iran's hardline regime afloat by continuing to import millions of barrels of oil each day. These sanctions against Chinese entities are necessary if the illegal Iranian oil trade is to be stopped and to bring Iran back to the negotiating table with the international community.
The US, ever the fan of unilateral action, has imposed sanctions on no less than 17 foreign nations, with sanctions targeted at organizations covering dozens of others. Instead of promoting positive change on the world stage, Washington's sanctions policies weaken all parties and harm nations and their populations. These sanctions simply don’t work.
There is a 19% chance the US will rejoin the Iran Nuclear Deal by 2024, according to the Metaculus Prediction Community.