This is not my problem or anybody elses for that matter. Why should we care how hard it is for them to get into the U.S? Why should we make it easy on somebody to get into the U.S, when they give nothing back to society?
When you want to start paying a hefty amount more for beef, chicken, flour, vegetables, fruit, home construction, etc., just let everyone know.
Personally, I think the US should have kept the Germans, Irish, Polish, Chinese, and Japanese out, as well. Who really needed a transcontinental railroad anyway?