In an ironic twist D. W. Griffith followed up his pro-KKK film *The Birth of a Nation* (1915) with *Intolerance* (1916) which was surprisingly not anti-tolerance. I imagine that Griffith saw formerly enslaved black people as being intolerant of their benevolent masters.
I've seen neither film. Nor have I seen *Broken Blossoms or The Yellow Man and the Girl* (1919, for some reason usually referred to as simply *Broken Blossoms*) based on the short story *The Chink and the Child*. The racial politics of that film were apparently fine **for its time** but awful by any objective standard.
I wouldn't rule out watching Griffith's films but I don't envision a scenario in which I could watch a pro-KKK film with an "open mind" and enjoying it for aesthetic or technical reasons.