You are quite right there Chris. He's not just a presenter, he's the worst kind of barrack room lawyer. Throwing grenades for his own publicity and never having to clear up the shit he leaves behind. A cvnt of the first order. At least Piers Morgan is relatively innocuous in the mischief he causes.
I don't know Chris, I didn't get past 10 seconds of his latest little trouble making escapade. All I know is if he comes in my local pub for a genial pint, he'll get trouble. I'll leave it to others that can stand listening to him to make a comment on your original question.
Quite clearly the answer is not what we're doing at the moment. I believe that the recent huge influx was due to the storm & consequential flooding in Libya. I think that building walls higher isn't ever going to stop this. Perhaps we should all be asking why something like 1% of the worlds population owns 90+% of the wealth.