The good thing about being a nation without borders means that we would no longer be a country. There would be no need for a Federal government, a House of Representatives, a Senate or any Federal Courts. No taxes could be collected because people would be coming and going and claiming no citizenship ANYWHERE. There would be no such thing as U.S. citizens and therefore, no such thing as U.S. taxpayers. That’s pretty tempting.
It would be the death of what is left of the republic, American culture and society, and signal a descent into anarchy and chaos.