Here’s a link and another link that bear out what @augustlan says. In order to get work, many, many illegal immigrants have false social security numbers, but that means they also pay taxes (just like you and me) but, unlike us, they don’t get to file a return. In other words, they subsidize us with their labor and are not getting “full pay,” just like slaves would.
Immigrants use very little public health care, too, and cannot legally obtain social security, so we don’t take care of them when they’re sick and old. Slaves, however, were often seen as an investment, and were given some sort of rudimentary health care, even though I doubt old slaves were seen as having much value still.
Now that “don’t ask,don’t tell” looks like it will be repealed, partially removing gay folks from the list of whipping-boys of the Right, the failure of the DREAM act would seem to push illegals front and center as a cause for “everything that’s wrong in the country” that the Right likes to trot out in poor economic times (to shift the blame from Right-favored causes of poor economic times such as deregulation, income disparity due to a less-progressive taxation policy, and education “reform”). In other words, the Right simultaneously blames illegals for all the ills, yet simultaneously needs them to pump up the economy with their cheap labor and other contributions. This reminds me a lot of the position of black folks in the South, both before and after emancipation.
It’s a cycle we’re all too familiar with in America. A need for cheap labor means we welcome the illegals (under the table, of course), and then politically-fueled fear means we tighten up the border, making the price of goods and services go up, leading to a need for cheap immigrant labor again. And ironically, a sealed border increases the number of illegals in the country since they can’t go home at the end of the season any more. Between that and the northern Mexican drug war and organizedcrime, it’s not clear that they can even live peacefully at homeanyway. In other words, they’re sort of stuck here like refugees sometimes.
Soon the whole, you could call them slave-like in that they can’t really move up, are stuck, perform manual and domestic labor, are paid crap and have no benefits, and are everyone’s favorite political target despite being necessary to the American way of life, but I think that’s where the similarities end. The slaves came over here shackled in boats, against their will, with no hope of a better life than the one they were just stolen from. For the illegal immigrants, sadly, what they get here is a life that they are running TO, because, piss-poor as it is, it’s better than what they can get at home, and it’s even a chance to send money home to help their families (if they can afford to do that anymore). Perhaps they’re more like indentured servants that came to America for a better life, without the chance of working off the servitude for real freedom.