my first thought when i looked at it was your friend is prejudice against Mexicans because the opposite direction of heaven should have been hell but it says Mexican.. but i guess he is trying to say Christians view Mexicans like hell? secondary i guess the pic is to suggest Christians use circular reasoning by reading the bible for answers..that argument could hold water if the bible was a single book but its not its a collection of books written by different authors in different times places and situations..
use it as a witnessing opportunity..pin down exactly what they are saying or stateing then go from there...