Perhaps I can be even more direct. Before you tell people they cannot travel in or out of any major city, shouldn’t you first take steps inside those cities? For example, why are they still running the subway in New York? They say no gatherings of 250 or 500 people or whatever... but millions of people are on those train cars every day. Mass transit=mass spread of disease.
I wish no person illness. But for pete’s sake, if this disease is going to spread like they are all behaving it will, then NYC is going to be hit very, very hard. And Manhattan island is totally dependent on importing everything they need every day (and, exporting all their waste and trash). But on the subways, trains and buses are where the disease is going to spread the fastest to the most people - not people traveling from Charlotte to Nashville or whatever.
I agree with your statements, but also acknowledge that if the Wuhan flu infects the subways and Manhattan, it will stay there and not be transported to Charlotte.