Morning Edition had a piece on people who hire undocumented workers to do tasks like landscaping their yards or cleaning their toilets. It quoted one person as saying that they hire immigrants rather than U.S. citizens or green card holders because she "believes American prices are inflated."
The article doesn't tell listeners what any of the employers in the piece do, but it is an absolute certainty that there would be a huge number of qualified people around the world who would be willing to do their jobs at a much lower wage than they receive. However, most people who work in occupations requiring more education enjoy much more protection from immigrant workers than people who landscape yards or clean toilets.
The position of the people interviewed in this piece is that they are entitled to protection from competition to keep their wages high, while they should be able to hire workers from the developing world at low wages to save money. It would have been helpful if the piece had elucidated their view more clearly.