The American shipbuilding industry has been allowed to atrophy in an idea that protectionism would lead to good commercial the results.
What little gets built in the US is way behind the global peers in terms of economics and quality.
As usual the end results are that the entire shipping industry works around the Jones act, for example cruise ships from Florida docking in the Bahamas, and for the regions that can’t do it they are tough out of luck.
Why can’t the US build offshore wind? Because there are no jones act compliant vessels and the proposed workaround is staging all the materials in Canada and adding an enormous time waste to the projects.
[1]: https://en.m.wikipedia.org/wiki/Merchant_Marine_Act_of_1920