I think the problem is that for relatively unskilled workers (and there will always be a certain number of people in that category by nature) the opportunities are really dwindling. Particularly since they now have to compete with illegals for so many of the jobs they could have traditionally relied on.
Its as if we've taken our least capable, least employable people and just thrown them to the dogs.
Later they'll turn up on welfare rolls, and we'll bemoan that seperately.
I think at very least we need to throttle down our immigration to some rate that provides a less severe transition for our lower class.
True, but this has always, always been the case. When the spinning mills came in in 1791 into England, there were wails of how people would be put out of work. Well, studies have shown that in fact that spinning mills CREATED far more jobs than they ever took. Some of those will be skilled, others would be unskilled. For every plant that is built, someone has to build it, and someone has to clean it.