If the military is going to build anything on the border, let it be a minefield. Cheaper than a damn wall anyways. Since the chances of either happening are pretty much the same, I'd like claymores and bouncing betties.
Go over them, under them, around them or through them. The objective is on the other side and whichever route opens up, run for the daylight.
Full frontal assault, plus bold action and really quick reflexes, can work for the best football teams, and it is working for Team Trump.