[[You stated that illegal immigration would still "occur" even with a serious effort at border security. The implication was that making such efforts would be a waste of time, even if they resulted in illegal immigration "occurring" at a markedly reduced frequency from what it's currently "occurring" at. Is that in fact your position?]]
I do not recall stating such an implication, so you might want to retire your crystal ball. I said illegal immigration will still occur, which it will, I made no comment about the rate or whether it would be a waste of time. Do you care to claim that statement is false ? You continue to divert from saying how you advocate dealing with the problem of illegal immigration. It is one thing to complain and another to offer solutions. Some solutions, possibly ones you might suggest, would be a waste of time, but not all solutions would be.
I would suggest you try to come up with your own position rather than try to divine incorrectly what mine is. I have said it is a complex problem (ergo if it is a problem, it needs a solution) and that I do not have the solution, apparently, neither do you, you just like to argue and hear yourself complain.
So in other words, you said what literally everybody in the country already knows, for reasons known only to yourself. Since you're not denying that illegal immigration would go down drastically as a result of building a barrier along the border like the one that already exists in the San Diego sector, and since doing so would involve a rather small cost, that part of problem isn't quite so "complicated" after all.