There are certain thangs that I think this study should take into account but does not. For example, with a smaller population and economy, the federal interest burden gets larger (on a per capita basis and on a percentage of GDP basis). We are already in problematic territory when it comes to the national debt. But with a significantly smaller tax base, dynamic scoring should take into account that markets would factor in a larger probability of default (including de facto partial default via inflation).
As bad as federal finances look right now, they would look much worse with a smaller tax base.
Fiscal conservatives decry leaving our children with such a large national debt. The burden on them is a lot smaller if immigrants pick up part of the tab.
