Why do YOU feel Illegal Immigration is Not or IS a most serious problem in the USA?

It's one of my top concerns. I agree with all your above notes. I am all for LEGAL immigration. I see too many in the agricultural area I live in get a free ride..IE no taxes, taking away construction jobs,(cause they will work cheap),using their sons and daughters SSN's to get work,(at least then they pay taxes),not learning the language to the point that English speaking American children have to change schools to learn,because the cles are being taught in Spanish.(The school district gets paid more per head for the Hispanics so why would they want to teach in English.)