The last paragraph is the problem. Any restrictions to travel within the US is a violation of several constitutional amendments. Some of those were passed after the US civil war to prevent states from restricting movement of the then newly freed slaves to the northern states. Medical science in the 1780’s when the Constitution was written is not anywhere near what it is today. It makes our founding members who actually wrote the Constitution look like geniuses, not allowing the federal government to enact more controls using emergency declarations as a disguise, things other governments have done throughout history.