Getting into the specificity of any of those things would alienate *someone*. Taking a particular perspective or zooming in on some specific facet of the themes at play would risk presenting the viewer with something they don't agree with, don't want to accept, or don't feel like thinking about.
The lack of specificity is the appeal. It makes his films "universal", not by tapping into the depths of human experience but by paying lip-service to some of the simplest moral ideas of our age.