For all his gifts as an actor and director, Mel Gibson's dark demons that lurk in his person are always on full display in most of his movies.  Gibson seems to have more than a fascination with suffering and pain [is this tied to his history of alcoholism?].  While "Hacksaw Ridge" may be about the heroism of a conscientious objector, it still glorifies bloody violence.

[For all it's brilliance as a film, I still can't watch the first twenty minutes of "Saving Private Ryan" just because of the horrific violence it depicts on Omaha Beach in Normandy.]