> you’ll deal with foreign ships crewed by foreigners with little or no regulation

The Jones Act requires "that all goods transported by water between U.S. ports be carried on ships that have been constructed in the United States and that fly the U.S. flag, are owned by U.S. citizens, and are crewed by U.S. citizens and U.S. permanent residents." The main problem is the domestic-construction requirement.

Release the construction completely. Open up ownership to non-adversary countries. U.S. flag only for freshwater, U.S. and friendly flags for saltwater. U.S. and friendly crews for any. You've simultaneously created a small economic boom in logistics, will eventually pass along the lower costs of maritime transport to consumers and reduced emissions by switching to a more-efficient mode. (Possibly, too, increased the competitiveness and TAM of American shipbuilders.)