"from the Gulf of Mexico to the Pacific" Little Hawk
Illegal immigrants would head over to Florida, LH, and come in that way.
As a nation we are so conflicted about this. In theory we say that we want to keep illegal immigrants out. In practice, we recognize that unless we have them our economy will suffer drastically.
So we try to do both.
The last time I drove through southern California I was startled to see roadside signs showing fleeing people. Kind of like Wyoming signs warning that you're driving through open cattle range.