You are so right. When my son and now daughter-in-law wanted to marry, my son managed to get a job in Japan, and they went through all kinds of loops and jumps for him to be able to live there legally, and on a smaller scale for us to be able to visit a few days.
Then when they wanted to move back to the states, they spent a small fortune and a good two years, being interviewed by mexicans no less, for her to be able to live here legally.
Driving a wedge between LEGAL and ILLEGAL immigration. That is what it is all about. Do that, and we will succeed indeed.