They don't need to be legally correct if the voters believe it. That's the point. The state governments and the federal ones exist in so far as the populace decides they are legitimate.

The Government operates with the consent of the governed, not the other way around!

The alternative is civil war.

There have been some cases decided. Gun stores were allowed to reopen last week in MA by court order after being deemed non-essential, but they are of course specially protected. Churches have won court cases to be able to hold in-person services, also a specially protected class.

But then there was the case of the barber shop in Michigan which just today a judge denied a preliminary injunction where the state was trying to keep them closed.

https://www.michiganradio.org/post/judge-denies-state-reques...