[mainepatsfan]

It was but a Japanese victory on that scale (the destruction of the American carriers) would have changed all that.

[Cheburashka]

It was but a Japanese victory on that scale (the destruction of the American carriers) would have changed all that.
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There was very little that could have been done. The Essex and Independence Class carriers would not start to be ready until 1943. If the American carriers at Midway had been sunk, there would have been nothing to do but wait.
You would have had to wait for ships to work their way through the pipeline.
As it was, with the change in fortunes that resulted allowed the U.S. to oppose the Japanese advance in the Solomons, probably a year earlier than otherwise.