Recently I have read, listened and watched people discuss Trump's proposed border wall.
I would not be surprised that some people want to recall all US military forces from around the world and place a soldier every 10ft on the border pointing their guns across the border because of the bad people who keep trying to come to this country. (Which is still a bad idea because the president is trying to bring back isolationism. It did not work very well in the 1930's and would be worse today)
Here are my opinions on why the wall will not work.
1. A good number of illegal immigrants come to the United States legally then just outstay their visas.
2. Building a new wall will be overly expensive and there are questions to if it will even be effective.
3. Drug traffickers already have means for going under, around, or even over the walls we have now.