Comment by imagist

Of course we would want that, but that's not what we get. The rich pay few taxes and the international rich pay even less, given they already have offshore tax havens by the nature of being from another country. Given a green card allows establishment of US companies which are exempt from some tariffs which are imposed on foreign companies, there's no reason to believe that giving the rich green cards will be a net gain for tax revenue. It is indeed sometimes a net loss.