Crackdown on Spanish speakers hurts all Latinos

This weekend I started a job in the restaurant industry. Since the industry is the largest employer of immigrants in the country, unsurprisingly the majority of the staff are Mexican immigrants. And since they're Mexican immigrants, all of them speak Spanish, which isn't really a problem for me because I can speak a little Spanish and understand most of it. The supervisor, on the other hand, has a problem with it.

Within the first 10 minutes I was there, Spanish-speaking staff were being scolded. They were surprised by this, so it must've been their first time being reprimanded at this job. Most of them had worked there for over a year. So why now are they being penalized for their native tongue? I'm sure you're all aware of the war on immigration that's happening in the country and in this state; it's leaving employers of illegal immigrants shaking in their boots and apparently scared enough to go as far as to tell employees they cannot speak their natural language.