Brent, once again your logic and points prove invalid. 12 century technology (the wall) will defeat cave man technology, (hands and feet). The majority are simply illegal aliens walking across our borders. Walls do stop those folks. Maybe you missed the video of the two guys (mules) who climbed over the the fence carrying drugs and then climbed back over when they were spotted. I guarantee they would not have been able to climb over president Trumps wall. As for the drugs crossing in vehicles every day, I guess you have not spent any time at any legal port of entry lately. I have witnessed the dogs in action in T.J. and they are not getting across there. A car a few lanes over got signaled out and dismantled. The driver is probably doing time as we speak (write). The wall,you refer to is not a wall, it is a fence line and a very poor half azz fence line at that. It was the Liberal's compromise that once again solved nothing. It is like putting 4 strand wire around your chicken coup and calling it protected. Tell me about the 21st century ways to track and detect these problems better and are more economically. I don't think you have a clue how to stop these people with a cheaper or more efficiently way than the Trump wall. The wall is stationary, no fuel consumption. The sensor are wireless and report to the people already on duty (no new specialized drone pilots). What makes you think most of the illegal crossing occur in populated area's, remember I live in a border state, near the border.
Brent you are NOT all for better detection and security methods or you would stop your pretensions about a balanced budget being your reason to not fund the Wall. You don't have the guts to get a balanced budget and make the cuts needed to balance our debt. Now I would agree to hold off on the wall, if all non security related funds were stopped. Once the budget was completely paid off then, we could talk about the wall and social service programs. Now that is someone dedicated to a balance budget. You just give it lip service. Don't want to waste money on things you don't like but it is okay to continue wasting money on the social services that are feel good programs YOU approve. Like most Liberals, you want your cake and eat it too. Too gutless to make the tough calls on the budget but willing to point your finger at the expense of the wall, without verifying the cost benefit.
The wall of china did stop the frontal assaults but the Mongols went around the wall. They did not breach the walls. Since the super majority of illegals aliens do come across our southern border and not around our southern border, your analogy has as many holes in it as your budget logic. It would be more honest to just admit you have Trump fear and would rather we not secure our border than give President Trump another political victory.