Around the world we are in a period where there are lots of people struggling where they are. Whether due to weather or war or crime, there are significant numbers of people who are on the move. Perhaps the most famous is the border wall that Donald Trump ran on. Given that almost all of the people who are illegally in the USA arrive legally and then fail to leave, cutting off the stream of people fleeing violent crime in central America will make little difference to what is going on.
