The same thing with battleship in WWII.
The writing is on the wall for massive carriers. much smaller, cheaper and quicker to produce ships are probably the way its going.
It should probably also be pointed out that doing nothing has a cost too, and it's probable that the bill for doing nothing over a long period of time has come due. I, like most people, never bought the WMD claims leading up to Iraq. I'm not sure what to think here. I certainly don't buy that Iran wasn't working towards getting the bomb after how well it worked out for North Korea. I can't claim to know the calculus involved in determining whether or not it's worth going to war with Iran to stop them from getting the bomb.
Apart from the oil, there is the fertiliser that isn't being shipped. That means that august crops are going to be down. Assuming its a good year. prices go up, which means we can expect a wave of overthrown governments (similar to the arab spring) in 12-24 months time.
For the USA that means inflation, along with a credit crunch (probably)
The US invaded Iraq and toppled its government; Iraqi militias are still firing drones and missiles at US bases. Tankers and oil infra are much softer targets… all it takes is hitting one or two tankers and folks will stop shipping.
The second half of that sentence is literally explaining why the "impossible" you reject in the first part.