I don't think it's possible for someone who's never looked at a cubist painting or a Cindy Sherman photograph to explain why it is liked by many art lovers. It takes a lot more exposure than a first glance with a mocking eye to "get" a different aesthetic or mode of expression.
I don't throw the stone to Coxsackie - we all do this to a certain extent. Limit the scope of what are willing to spend time seeing/listening/reading/watching in order to appreciate or understand it. Such scope may be wider for some than others but it's here for all of us.