I have always made it a point in life to stay away from Walmart. Especially in San Antonio I’ve been to Walmart less than ten times. No lie.
I live here in San Antonio and most of what is being posted in this thread is patently false. Yes there are pockets that may resemble Mexico, but few and far between. English is just fine anywhere and remains the dominant language here. Does it help to be bilingual? Sure. Required? Not at all. And it is not a sanctuary city.