In this country I don't believe that human waste is allowed to be used as fertilizer, but if the price is right we will eat anybody elses that is grown on it.
The thing is, it isn't legal to use illegal aliens for labor either, if your willing to break one law you are willing to break another. I find it interesting this is happening in CA, southern CA at that, where there are the more illegals per square foot then in the rest of the US.
What's allowed, and what's done, are two different things.