Respectfully I would argue not every border wall throughout history was a fallers. The Great Wall of China for example, while not perfect by any means, was actually quite successful at preventing invasion. I’m sure you would like a more recent example so I would point to Israel’s border walls and the way that they have cut terrorist attacks such as suicide bombings by something like 60-70%. I really don’t want to touch on the rest of your points because to be honest most of them just seem like baseless “facts” or unintelligent fighting for the sake of partisan fighting
Sources:
http://blog.tutorming.com/expats/was-the-great-wall-china-effective-did-it-work