And if they are unconstitutional it is not the outrage of the century but instead a technical matter for the ability to put a city or state under quarantine has been a commonly hold executive power as part of tradition, yet we as a society can choose to create other rules and thus we are not slaves to the traditions of people long past dead.
Quarantine and Vaccination laws have been really solid for the Supreme Court throughout its tradition, hell even during the Lochner era the court reaffirm the general principle the state can do. It is a power the state can do.
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How best to do quarantine, and whether a state should do it is a whole different matter entirely. But that is not what you been arguing with your sweeping passionate rhetoric.