Unions are pissed because they can’t sign up the H1B visa holders as easy as they can with the illegals. The SEIU and like LOVE the illegals.
I’ve always thought that illegals and guest workers (such as H1-b’s) served the same purpose for different parts of the labor market. Both are used in a manner that work against the immediate participants in the labor pool as well as US citizens.
Never mind that it also demonstrates the “claim a shortage to deepen a surplus” concept that violates basic laws of economics.