It's a market wage, and saying Americans won't do work for a market wage is insulting to illegals and Americans. Our modern, technological economy depends primarily on innovation, investment, and knowledge, not low skilled, uneducated invaders from the South.
Of course, my son's company pays the taxes on those workers, too.
I am all for letting people in to work with proper identification and permission. Then we could settle this question: is it that there aren't enough workers, or is it that there aren't enough CHEAP workers? I believe the answer is the latter.
I vote for securing the border, huge fines for employers who violate the law, deportation when someone is discovered to be illegal, and a window of time to allow them to go home and reapply legally.