The United States is not a social program. We aren't responsible for the problems of other countries. Let them solve their own problems. We can even help them, but there's no justification for relocating their population here.So, you want a wall only because it adds time to an illegal border crossing?So why not just use the motion detectors?
Changing your route From Guatemala to avoid the part with Trump's magnificent wall is not a big deal.
The French built a wall to keep the Nazi;s out. How did that work out?
Because if you just use motion detectors, by the time anybody gets there the intruders will be gone and then they have to spend time hunting them down. If they are alerted before they approach the wall, they can get to the area. By the time they breach the wall, it's likely somebody will be there for the apprehension.
But that's actually irrelevant because the main function of the wall is to act as a deterrent. It won't stop everybody, but it will stop most.
As I said, the main purpose of the wall is to act as a deterrent. It's kind of liking having a house alarm. It will stop most people, but some people will ignore it and try to do a smash and grab. Because that does happen from time to time, it's no reason to not have your house alarmed.
This country has been a refuge for people in trouble. People are fleeing drug cartels that hold sway in Central America and large swaths of Mexico. The border is not a house and has nothing to do with houses. It is about people who fear for their lives. One girl said "There are police here, in case something happens to us,".
We have always been a refuge for people who are in fear of their lives. The pilgrims came here to practice their religion without fear of the state. Maybe you need a course in US history.