Any country can be a logical island if it restricts movement at its national borders. Was the US powerless at the federal level to do this, or is that a state i

Any country can be a logical island if it restricts movement at its national borders. Was the US powerless at the federal level to do this, or is that a state issue? Even grouping the US by landmarks (west of the Rockies, in between the Rockies and the Mississippi, east of the Mississippi) and having open interstate movement in those zones would have been a start. The options for handling COVID was not a binary choice between absolutely libertarian and absolutely draconian policies. There was and is a middle ground!