John Wayne wrote and directed the movie you're referring to, or are we just projecting? Actors are hired help who play (usually) two dimensional fictional characters in movies and are typically held in low esteem by producers who hire screenwriters and directors and whether or not they "deeply respect Hispanics" don't mean squat to nobody!
Not too familiar with this movie, are we? The movie was a pure John Wayne production, he created it, produced it, directed nearly all of it, and, as producer, was in control of the writers. When Young Americans for Freedom had its rally filling the old Madison Square Garden in 1962 they presented a special award to John Wayne for this great patriotic work.