"But Mexico's foreign ministry said the booklet was an attempt to save lives and inform migrants of the legal consequences of entering the United States.
save lives, stay home, go home!
Lets do a comic book that says "get out, go home, you are not welcome here!" and distribute it.
They have to keep it simple. Quite a few are functionally illiterate. Quite a few from the southernmost states don't speak much Spanish either. They use the local Indian dialects instead.