Of course. The wall is just the first step. The next step is having the manpower to run checks on everyone coming in legally. We need positive ID and where they will be working, going to school, or just visiting. Anyone working will need to fill out the proper forms and show they are complying with our laws including paying taxes and not undermining minimum wages. If caught violating our laws is immediate deportation and no longer let in. With a secure border it will have teeth and not be a joke. Right now anyone deported can walk right back into our country. Our border security is a pathetic joke. Nobody even considers it a concern when coming to our country.
That would be interesting if not for two things.
A)A wall of any physical barrier simply delays entry. Its a delaying feature, not a denying feature.
B) Our entire Illegals problem, at least the problems we care about can be easily put into three categories
1) Central Americans that are illegally entering and making it to a population center large enough to allow them to disappear (about 34,000 unauthorized entries per year rounding up to 375,000 since 2007)
2) Central Americans that are making Defensive Asylum Applications (about 61,000 FY 2016)
3) Undocumented Alliens from various locals that either overstay their legally acquired visas or Defensive Asylum Applicants that only received initial processing at entry and simply can go no farther in the processing because we don't have enough processing assets. These total out for all regions to 10.7 million already here. 7 million of which have been here for 10 years or longer.
There is no longer ANY Positive Growth Illegal Immigration from anywhere but Central America for the US. In fact we have either 0 Positive Growth or Negative Illegal Immigration Growth from everywhere else.
Anybody with a brain would figure out that if virtually the entire issue of aliens moving to our borders is coming from Central America you resolve that problem at its genesis, not at its terminus. Go look at a map. That is a very specific, relatively small and relatively manageable part of the world, a part of the world that we have screwed over for about a century with our endless Regime change efforts. Virtually all of the foreign aid we have spent in Central America has been aimed at Regime change. As such we should move to foreign aid aimed at rebuilding the economies of those countries SO THE PEOPLE THAT LIVE THERE STAY THERE! We send virtually nothing there for foreign aid now. Oh we are big on sending money to all sorts of far flung parts of the world. But our own backyard, teaming with countries we have screwed over five ways from Sunday and are now paying the price for it...NOPE...just not as emotionally satisfying as some WALL.
Next on the agenda would be dealing with the processing issue, Visa overstays and finally resolving DACA. Our Asylum standards are extremely high. If we would more rapidly process these Defensive Asylum Applicants virtually all from Central America a good many would simply be turned around and sent home. Processing does not mean accepting. Processing means processing. Instead we are content to let Trump break both International and US Law at the border because it makes some of us feel good to see people that are already suffering suffer more. The Trump entourage includes a bunch of soulless bastards for my money including Achtung Steve Miller who is an embarrassment to his own family.
Last and actually least would be more physical barrier at the border where effective at delaying illegal crossings as technology tracks them and CBP agents pick them up thus ending a particular border capture event. In fact there are so many stretches of nothing on our Southern border that just tracking them adequately will lead CBP agents to them before they can reach a population center and disappear.
All of the above makes more sense than attempting to erect a 1,100 mile physical barrier with all the eminent domain and property purchase issues that would arise especially given that most property owners on the border have no interest in abutting a 30' high physical barrier regardless of its design. That is if we really want to deal with this issue.
Your Wall might make you feel better. But it won't stop a darned thing. Most drugs come though ports of entry and your Wall will just push people to using other means to cross. Unless we deal with what drives them out of Central America, the only external to the US part of the world we have an illegals issue with, we are kidding ourselves. If we don't deal with Defensive Asylum Applicant processing more efficiently we are kidding ourselves. Yes we need a contemporary, integrated Border Security System which includes see through physical barrier where appropriate. See through is what CBP wants. We don't need 1,100 miles of feel good Wall!