Yhey saw the big opportunity available to them, starting with Reagan's 1986 Amnesty, GW Bush-McCain era push again for amnesty.
Guess who benefited from low wages?
It was not always this way.
In the 1960s during Regan's CA governorship, Cesar Chavez opposed illegal immigration (UFW-United Farm Worker Union) Chavez knew illegals drove wages down for his members.?
Largest Ag. producing state. GOP Govs Reagan, Wilson, Deukmejian, Arnold.
Happy farm interests (huge corps), happy food consumers.
Hispanics afe dependable hard workers.
Service industries, hospitality, janitorial, fast food, construction.