LOL. Right. Just because YOU call it an invasion does not make it so. I could be wrong, but I sincerely doubt the U.S. Congress is going to call for a military response to the "illegal workers invasion of America."
When people from a particular country, to the tune of millions every year, knowling break our Federal Immigration Laws (among the other laws such as working illegally, driving illegally, driving without insurance, and committing various other crimes) and refuse to leave, what would your definition of that be if not an invasion.
I'm open to a redefinition if it make sense.