Maybe since these cruise lines are claiming it is dangerous to board them DeSantis should shut them down. That might change their minds.
Not the cruise lines fault, they’re just complying with Federal guidelines. Which in this case are in direct conflict with Florida law. CDC certificates require a 95% vaccination rate among passengers and I believe 98% among crew. If there’s no way to achieve that because they can’t ask vaccination status DeSantis/Florida has already shut them down. They’ll come to some solution soon, different rules and costs may be the solution.