I think International goods (especially hazardous materials) still have to pass through a Port of Call and US Customs inspection. So Connie can unload a LAX, then it has to get trucked over to Port of LA and await final transportation like everything else stuck there.
Unless you work in manufacturing or a related field, you have no real idea how broken the supply chain really is. And it has very little to do with too much demand or an "improving economy" as some want you to believe. Saw a study the other day that the AVERAGE price of a new vehicle (Car/Truck/SUV) in the US has rocketed to almost $46k. That's the average ... HOLY CRAP !!
Had a discussion with a racing crew recently and was told lead times for crankshafts can be out 26 weeks based on material availability. Think about that, half a year. Your whole season could be ruined because of parts availability even if you can afford them.