When the 'take our jobs' website first came up (immigrants offering citizens to take their jobs bending over artichoke fields and what not) I was one of the first to sign up. It turned out they didn't actually want people to take their jobs, and they never actually offered me a job even though I was 100% ready and wanting to take their job. These jobs are largely closed off to citizens through the old boy network of immigrants (I'm not impugning them for this, I'm very glad they're here working those jobs so I can eat). I ended up hitchhiking to North Dakota for one of the few labor jobs available, building housing for the oil rush.