It's more about pressuring China to pressure Iran. Iran has continued its oil exports through all of this, mostly to China. By blockading those, we pressure that. I guess it's our way of saying if our friends can't get their oil out, neither will you.
It's still all part of the background negotiation shaping that will probably result in some deal in the next 2 weeks IMO.
I think people are overvaluing how much china cares about this, tbh. As far as oil exports they can replace them fairly easily. Iran accounts for about 11% of their imported oil.
Fertilizer is more key, especially given the time of year we're in, but im not up to date on acreage spread of ferts that china uses compared to the USA. Here we fertilize like crazy, so the entire strait situation is going to hurt and quick. I'm in dairy land where manure is king, so wont hurt us much but in the plains this is gonna kill yields and costs.
my gut tells me which is willing to weather any storm because they know short term they can withstand it and Trump/USA can't. we're better positioned to withstand a full global recession, but we're far worse positioned ahead of midterms for turbulence.