Demand that they learn English, or live with the inconveniences of not knowing it.
Okay, so here's your "dream scenario":
Alarm comes in to station, Fire & Rescue 1 & 2 respond. Within minutes of the alarm first going out, they arrive on the scene, to find two bewildered-looking middle-aged people, man and woman, sitting on the curb, weak from smoke inhalation.
The firemen begin shouting at them: "Anyone in there? Is there anyone left inside? Children? Old folks?"
The dumb hispanic couple, who haven't bothered to learn English, just as generations of immigrants before them did not, look at them without comprehension.
The firemen turn and look at one another, shrug, squirt their hoses on the fire till it goes out, then leave.
Later, the charred remains of three children and the grandmother are found in the rubble.
That'd be acceptable to you, though, right?
Or how about this? The firemen, realizing there's no way to know for sure, plunge into the burning building frantically looking for anyone who might be there. Unlike the usual situation, they don't even know who might be there, so they have to look throroughly. Meanwhile, the fire burns out of control, and the Firemen suddenly have to make a frenzied escape. Or try to; before they get out the building collapses partially trapping one man, who burns to death, and seriously injuring two others.
Again, I guess that'd be acceptable to you, just as long as the message that we hate people who don't speak English is enforced.
What a putz.