A few of us went with electrified fence and a bunch of questionable Freepers told us in no uncertain terms that we wanted dead Mexican kids.
It was quite the interesting thread. I would however be perfectly happy with your solution.
There is a reason why the DMZ is very successful in deterring invaders..
No sane person would cross after the boom. Now if you want your free healthcare and mooch off the gringos you despise but feel it’s worth it, then feel free to cross as this so-called current fence or border ain’t working and never did.