Best outcome is the US doesn't join, Iran continues attacking the entity and due to internal contradictions with tons of their settlers fleeing not to return near-term it begins a slow decline and stagnation towards collapse.

Middle outcome: Neither side really wants to fight to the end if the US doesn't join and instead they agree to a truce, things go back to being very tense, Iran buries its dead martyrs, the zionists buy a shit-ton more THAAD type systems to attempt to deal with hypersonic strikes. Maybe Iran signs a poisonous deal with the US to agree not to build nukes, maybe they don't, the can is kicked down the road but this may benefit China and the global situation though it does little to help Gaza.

Worst outcome: We could be merely months or a year or so away from complete US dominance and control of west Asia/the middle east. And if that happens the chessboard has been set for the final showdown with China and China's position is not great while the west's will be extremely strong as they'll control access to nearly all the world's markets, the world's resources, etc while China will at best have some factories that need inputs from that world the US controls, and need markets from that world the US and NATO have slapped gates on. And at that point China no longer has the leverage, the US does. And China's only choice in that situation is to fight a massive, far-ranging war against a well entrenched, well planned empire on the high seas, against various islands, bases, etc in west Asia, in Africa, etc. And in the process likely have to fight a huge number of western puppet militaries who react to their US hosted bases being attacked because those bases have been intercepting/sinking Chinese shipping and the west will as always act like they were enforcing legitimate "sanctions" from their "rules based order" and act like China is a rogue bandit state. By seizing the gas supplies the US also hopes to prevent China from having the fuel to run its military as widely and wastefully as the US will be able to.

There are of course things that the west needs to do for that worst outcome to come to pass, complications like creating alternate sourcing of rare earths for their military or using subterfuge and front companies to build up a huge stockpile before such a conflict. The US does seem to be preparing its proles for worsened conditions and the return of dangerous industry. RFK is not a mistake or an anomaly he is there to sicken and poison the bodies and minds of the proletariat, to kill people sooner, to lower environmental standards and get people to believe its okay because you can just drink a toxic itself miracle purge dye or something and make yourself healthy again. Same with buying off the pharma interests with AI approval of their drugs.

One bright ray is the resistance of the Walmart heiress and other consumer brands to Trump's tariffs as its hurting their business and profits but intra-bourgeoisie infighting cannot continue forever without a winner and frankly if I had to bet I sadly feel the imperialist aligned faction will likely come out on top against concerned parts of international capital and the consumption driven interests like retail. They're in bed with the deep state, the intelligence apparatus.