Yeah it's such a weird attitude because I bet they didn't come over the border. The vast majority of illegal immigration into the United States comes from people overstaying their visas, I don't see what a wall is going to do to stop that. Well I do see what a wall is going to do to stop that, nothing at all.

As they say a 30 ft wall can be beaten by 31 ft ladder, but equally you could just take the plane flying at 12,000 ft