Does it kill people too? It should. That's what they get for spraying poison around like that.
Rats, mice and the fleas they carry have killed a whole lot more people than any poisons designed to kill them, so even if I were inclined to accept this particular brand of moral equivalency (seriously--people who kill mice with poison should die, too?) I would disagree on numbers alone.
IN GENERAL, though, I agree that poisons aren't very practical or effective for a wide variety of reasons, and should only be used in the case of mass infestations in non-food handling/storage areas. The better options are live traps, glue paper and the good old fashioned spring traps.
