Which is a great point. The NEED for immigration and how to address it should be balanced with the NEED to develop the knowledge, skills and training of citizens. Importing labor because it's lacking doesn't address the problem of why it's lacking.
This reminds me of the quote: "Please accept my resignation. I don't care to belong to any club that will have me as a member".
Not many, but it doesn't matter. They are here under a different law.
Doesn't really matter because they are legal immigrants.