Washington sent an Army to the border to take care of business.
Now, the invading army of Mexicans uses the fort (Huachucha)as a path in, their hands are tied. I can only guess it will get worse, rather than better. Maybe Masamune Shirow is more a futurist (and accurate) than first imagined.
I believe that whoever provided the post-apocalyptic details for GiTS as well as the 2 seasons of the TV show has demonstrated an uncanny ability to depict those situations in a convincing manner.
I don’t think it was entirely Masamune Shirow despite the disturbingly accurate geopolitical situation depicted in both seasons of GiTS:Standalone Complex.
There are some traditional post-apocalyptic Japanese memes in that movie and series that are coming to fruition.