> If you play "what if" and imagine the Japanese had won Midway, and the US had no carriers at all, that gives the Japanese total control of the Pacific. The Japanese can take Hawaii if they want to, because how could the US possibly reinforce and resupply it? The Japanese can attack shipyards and ports on the West Coast at their leisure - and those would be defended obviously, but the attacks would greatly slow the progress of shipbuilding.

So here's the big problem with that thesis: the attacks at Pearl Harbor and Midway stretched the IJN's supply and logistical capabilities to their utmost limits. It's very likely that in any actual attempt to take Pearl Harbor, the US would have sabotaged the port facilities to the point that it would have required months, if not years [1], to bring it back up to an operational status capable of being used as a forward operating base for striking the US West Coast. Oh, and this is Hawaii--everything has to be brought in from the mainland, which means you're diverting a lot of shipping to maintain a supply line while you're repairing the harbor at the same time. Which is going to be vulnerable to submarine activity the entire time, and Japanese anti-submarine practices were terrible.

Yes, Hawaii is the strategic linchpin of the Pacific Ocean. However, it is so remote that actually acquiring strategic control is extremely challenging. At the same time, Japan is basically running against the clock: the Essex carriers start commissioning at the beginning of 1943, and that's the countdown Japan is running against. Japan just doesn't have the time to consolidate Pearl Harbor into an advance operating base, even if it could theoretically capture it.

[1] Keep in mind that the US was still in the middle of upgrading Pearl Harbor to serve as Pacific Fleet anchorage, which was I believe a decade-long process.