Here is my attempt to explain it... Stylish design and appreciation thereof requires having some well-developed taste and also requires that most or almost all

Here is my attempt to explain it... Stylish design and appreciation thereof requires having some well-developed taste and also requires that most or almost all users belong to the same cultural tradition. Otherwise it will produce interiors or worse, cities that are a hodgepodge of kitsch creations. There has to be a lowest common denominator of "good ornament" that nearly everyone accepts as such. With mass urbanisation resulting in majority of city population being low class, and with multiculturalism resulting in a large fraction of city population belonging to different cultures, the lowest common denominator has become, well, really low. Ah, there's also that desegregation thing.