Two nations share a common border. One of the nations is mired in poverty because of being chronically misgoverned while the other is run quite well. Predictably, the poor nation's people want to move to the more prosperous nation, so they have begun simply walking across the border rather than taking the legal route. What do you suppose the more prosperous nation should do?
Well, we don't have to wonder about it in this case. The Dominican Republic is in the business of building a 100 mile long security wall across much of its border with Haiti. It will be 13 feet tall and topped with wire. They seem to have the idea that the idea of eliminating the great part of illegal gun and drug smuggling as well as illegal immigration is a really good idea.
Wonder why we don't come up with something like that?
https://www.theguardian.com/global-d...all-with-haiti