Starting with three Mexicans one a terrorist and one being a drug dealer and the next being the immigrant argue over who does the most damage.
This episode showed how a change in the population affects the whites. With the Mexicans becoming the majority all bars, restaurants basically everything that was white now became Mexican and Mexican became normal.
The white culture decreased thus JC stood up for them, got them a white reservation.
The news had mostly Mexicans, the series had Mexicans everywhere you would see Mexicans.
Of course at the end it went back to being a white majority. And it proved that being a majority makes it easier for people and harder on the minority.
The lesson being be good to the minority’s because you could be one some day and get mistreated.