I am so sick of these people & their totalitarian nonsense. Tell CDC “Screw You!”
Time for all Cruise lines to avoid all US Ports until the CDC solves the pandemic. Most Cruise patrons are going on cruises to ‘Foreign or Exotic’ places outside the USA anyway. Why not begin and end their cruises in such a place. Puerto Vallarta would work on the west coast and Cancun on the east coast.
As a bonus, since you do not need to spend 1 to 2 sea days getting to your first destination, you will be able to stop at more ports with fewer sea days.
Once the CDC finally figures it out; the Cruise lines can decide if and to what extent they want to return to US ports.