Damn ... there you go confusing the left with facts again!!
Don't you know the left can't count past 20? Well, the men can count to 21, (probably closer to 20 1/2) .... ??
The Comrade's wall is not going to get built.. Congress has already said NO--they're not going to fund it, and for good reason--
they don't work. A great video on this--at the end of this video it will tell you how much we already wasted on walls and fences. Then it will move into another video regarding the terrain issues, and the problems with structural security.
The average idiot - and you're certainly not average, are you - knows that the wall is but a single tool in a large toolbox of techniques, resources, and disciplines that can be used to manage the border.
To attempt to ignore those tools in order to try to prove your position is, at the least, intellectually dishonest, demonstrates your lack of engineering knowledge, and - at the most - is just plain dumb.