I don't see any of your responses that make sense. Only by taxing those who have enriched themselves throught he productive labor of our workers would justify allowing them to move in the first place. Making money is not like freedom of movement; you have to share it properly in order to be effective. It's not fair that a state would be penalized because they want their citizens to have a minimum level of protection.
In the first place, businesses PURCHASE the "productive labor" of the workers. It's called WAGES.
Second, sharing is VOLUNTARY and subjected to the whim of the EARNER, not mandated by a government bureaucrat and subjected to the whim of politics.
Third, it's totally "fair" for a business to move to wherever the hell they want to. Despite the best efforts of liberals, it's still a (somewhat) free country, and if a business wants to move to a state to better their bottom line, so be it.
Come to think of it, just why do you think businesses move offshore? Could it be the US now has the highest corporate tax rate in the world, and are regulated past the point of ridiculous?
Fourth, life ain't fair. Get over it or wear a helmet.
Maybe governments should rethink their citizens' wants and adjust it to what is practical and necessary, and stop playing Santa Claus. If the citizens' think they "deserve" more freebies, let THEM move to a state that provides them.