Exactly. You can designate "guest workers" in any zany scheme you choose, for any length of time, with any conditons attached, and not one thing will be changed in the slightest. All illegals will continue to feed off the system, and all who strive to follow the law will still be waiting at the border for however long, and all who might like to have a job legally, however humble, will be screwed because the job is taken by an illegal who will work for less.
Everthing else, especially the drivel about someone "having to go to the back of the line," is insulting verbal diarrhea. "Line? We doan' need no steenkin' line!" If they were willing to stand in line they already would have done so.
But it's carefully-drafted verbal diarrhea of the highest RNC-approved compassionate-conservative quality.