We need a wall. Forget the nuance.
Thanks for starting me on my favorite rant.
My family and I lived within 2 miles from the Mexican border back in my Navy early 80's days. Because our house was on a curve, we were in the direct line of illegal's trek and often went through our side gate. Can't count the number of times they scared my children late night and I had to run out with nail-spiked club in hand (didn't own guns at the time). They'd back off, but surprised I was never over-run.
Decades ago, California built an effective double fence/wall from the ocean and eastward to about 1/4th of the State (thank Rep. Duncan Hunter). We didn't need it completely along our southern border because most areas are inaccessible and don't have the town infra-structures to hide or transport the illegals. We reduced our illegal alien crossing by over 95%!!! That's why Arizona became the new opportunity for crossings.
Having driven out to Tombstone to support the Minutemen years back, I noticed that AZ has even longer expanses of desert (hwy goes on forever) with no towns for illegal staging points and no cities/towns for them to disappear in other than some gas stations in the middle of nowhere. They would die just trying to get to Interstate 8 for pickup. Check out a map.
If AZ and Texas were to build enough double fence/walls in strategic areas, most of the problem would disappear. We don't need such a barrier along our entire southern border as was once Law and then repealed. Although, I did support that legislation.
Just build the double fence/wall in high crossing areas that are accessible for transport and/or melding into local populace as said above. The unforgiving desert is a formidable barrier alone. They don't cross those areas.
Make me King of America for just one week and see how much gets done. Want to see a list? I've posted it before. Har!