Look at the most popular television shows, musical acts and movies in the West. And by "popular", I mean the most commercially successful. With very, very few exceptions, it's all lowest-common-denominator tripe, aimed at the 18-35 demographic, promoting the pursuit of youth, physical beauty, material gain and fame, above all else. If I wanted to put it more kindly, I might say it's escapist wish-fulfillment material.
For many of us, life is already throwing enough physical, mental and emotional work our way that when we have a few minutes or hours to spare on entertainment, all we want is the cinematic, musical or literary equivalent of junk food. We want something shiny to distract us for a little while, that's all. I'd have to count myself as part of that population most of the time, for the past few years.
Then there's the (possibly larger) population of people who never
seek out anything but the shallowist escapism in their entertainment. If a movie, song or book happens to make them think a little, fine. But they're not looking for that, and if it requires them to think too much
, they're turned off because it starts to feel more like work than entertainment. It stops being fun, and nowadays, consumers expect everything from driving directions to language lessons to be fun.