If Trump wants to test these walls, take 100 immigrants, give them a pile of junk from a scrapyard plus rope, and tell them that if they can get over the wall in 2 hours they get citizenship.
90 minutes later, they'd have devised a method to deploy and scale the wall in under 2 minutes, guaranteed.
Looking at those prototypes, I know I could do it. Anyone who says it can't be done is not very ingenious, that's all.