I don't know what happened between Kubrick and Duvall, but it is clear to me that Kubrick's art looks at humanity in general in a cynical and one might even say misanthropic way.
Think about his male characters. His films are full of men who are neurotic losers, corporate conformists, cynical opportunists, or violent lunatics. Not that he never presents conventional male heroes, but they are rare in his work as a whole.
He certainly seems to be more interested in male characters than in female characters on average, judging by who gets more screen time. But he is not especially kind to the male gender. If he was a misogynist, perhaps we might just as justly call him a misandrist.
He very well might actually have been more of a misogynist than a misandrist, but if he was I'm not sure that it really shows through in his movies.
Think about his male characters. His films are full of men who are neurotic losers, corporate conformists, cynical opportunists, or violent lunatics. Not that he never presents conventional male heroes, but they are rare in his work as a whole.
He certainly seems to be more interested in male characters than in female characters on average, judging by who gets more screen time. But he is not especially kind to the male gender. If he was a misogynist, perhaps we might just as justly call him a misandrist.
He very well might actually have been more of a misogynist than a misandrist, but if he was I'm not sure that it really shows through in his movies.