The problem is walls can be scaled, destroyed, pulled down, dug under etc. Unless there are plans to
man every metre of the wall 24/7 then it won't make much difference. It will also take a good
amount of time to build. It's just a PR exercise.
Ps our wall the English Channel gets scaled in numerous ways.
Silly British... you put your wall under WATER!
Like I said, I agree... walls are generally not an effective, long term solution. But, until we get our government/society to agree that we have to keep out the influx of visitor parasites, a wall is the best temporary solution.... and temporary might last for decades... just depends on how rapidly things change.
If a nation wants to remain the nation they have been, there have to be rules about who can be a citizen of that nation. If there are no rules, then you have anarchy, then chaos..... and the nation ceases to exist.
Look at how great Rome was, for so long... and they protected their "citizenship" status to the death. It was important to them... and it should be to us, as Americans, and to you, as British..
This is only one of the many things Teddy Roosevelt had to say about immigration.....