Modern US cruisers appearing in the 1930s

What would happen if modern US Navy cruisers and their support infrastructure appeared in the 1930s?

They would cause panic, but finite and costly missile stocks would make replacement production and close-in defence crucial.

The counterfactual supplies modern US cruisers and their support infrastructure to the 1930s. Their sensors, missiles, and close-in weapons would cause immediate panic and outclass contemporary aircraft and ships. The decisive question would soon become whether the industrial base could manufacture replacement missiles. Expensive advanced rounds used against much cheaper aircraft would create a worsening exchange ratio, even though Phalanx could defeat many attacks. The technological leap would remain dependent on production, sustainment, and economical ammunition use.