first, because the bill prepared by teddy kennedy and john mccain to essentially grant amnesty to illegal aliens (yes, i said amnesty) that we fought so hard against is still sitting in congress, in a different form.
second, because both of these scarecrows and frauds do not stand behind the people of the united states of america, but rather, are patsies to big business, which will get away with hiring illegal aliens and therefore, removing good and safe workplaces as well as replacing YOU with an illegal alien if they can get away with it.
third, the people of this country are generally asleep. they focus on what the media focuses on at any given time, which is always only one thing at a time. did you see stories about the elections or the illegal alien crisis at ALL when the bailout happened? (btw: both of the mainstream candidates voted FOR the bailout, which adversely affects YOU, and will impinge severely on the happiness of your children and your grandchildren and their children). so, why would the people think about illegal aliens now, or, why would they ask the 2 puppets to state their position on them?
fourth, i hope that you start to investigate our corporations! do you know, as a fact, that del monte, a us corporation, bought up thousands of acres of the very best farmland in a state of mexico? why did they do that? because, in mexico, the miniumum wage is $4.87 A DAY, not an hour! they bought up all that land using the profits that we paid to them, to their almighty bottom line, by fooling ourselves that we should never boycott them for ignoring we, the people of our country, needing JOBS. and you know what else they did with YOUR money? down there, they have built plants for processing all the food crops that the mexicans, legally, will work at planting, weeding, maintaining, picking, processing, canning and freezing, as well as transporting, by rail, from mexico to the usa, all because del monte pays them 3X the legal minimum wage! and at the same time, del monte has set it up so that mexicans, who might be able to afford buying a farm of 7 acres can't do that because the land is on 99 year leases (as good as buying it). in all likelihood, green giant is doing this now too.
the one candidate that has consistently voted against this malarky about illegal aliens is ron paul. but you may not have your vote for him counted in your state (check on it) if you write his name on your ballot.