By ending liberal asylum rules the Biden administration can end the issue of surges in illegal migrants crossing the border with Mexico that has roiled politics in America for the last decade. Much of the surge in migrants is a result of economic dislocation in Central American countries that only be tackled in other ways not at the border. This is a lesson that was learned in Europe, and is being learned in the US.
For the US and EU this detracts from other major issues that the countries face in the way that wars in remote regions dissipated resources of the US and EU. By creating issues that have no real relevance to America's future development and ways in which that development benefits other countries in the world, these wars and border issues are now errors from the past.