It differs in different parts of the country and within industries. As you said, landscaping may be a job that some Americans may be willing to do. But here in Georgia there are farming jobs and chicken processing plant jobs that Americans don't want to do or won't do at the wages being offered. Everybody wants it both ways. High wages but low prices at the store. Or cheap labor. As soon as the "officials" attempt to crack down (enforce the laws) the farmers/chicken plants are the first to scream bloody murder. Remember, to the right wing politicians here, business is king. Money trumps all. Let's see how many Bible thumpers will pay $8.00 for their Chik-fil-a sandwich when you increase those "American" labor jobs.
Two lines from Latino Connection Georgia article:
"A lack of workers (and clients) lead to business loses and stagnant economic development.. Consider that there is no state that has been more growth in its number of Latina-owned firms than Georgia and that Georgia already loses over $140 million dollars in rotten crops due to the lack of labor in the fields.
To those fiscally conservative; remember that detentions and deportations have a massive cost to tax payers, $1.80+ billion in 2014 and 92% of that cost is paid by the states."
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As we speak, there is an attempt being made at rounding up and removing illegal workers. I'd be willing to bet you how long that lasts NOT because of humanitarian reasons, but just as soon as the landscape business heats up again in the spring.
Now, be clear, I am not saying undocumented workers is the way to go. I'm saying ANYONE DESERVES to be on the path to citizenship so why not make it easier to be legal?