Heck, just go through the KEXP YouTube catalogue to be blown away by what's happening in music.
Not that everyone who likes a song buys it, but regional sales show vast differences in sales and thus tastes for different albums.
Number one song on Spotify as of this moment:
"If he ate my ass, he's a bottom feeder"
"Beat it up, n-word, catch a charge"
"Never lost a fight, but I'm looking for a beating"
"I wanna gag, I wanna choke"
"Pay my tuition just to kiss me on this wet ass pussy"
Nowadays you simply don't find any mainstream music approaching the levels of sophistication of, say, 1980s mainstream music. Where's the Dire Straits, the Gary Moore and the David Bowie of the 2010s?
Janelle Monàe may be this generations Bowie. And Kendrick Lamar can definitely hold his own in comparison to dire straights.
Good art is by definition subversive, and you won't find subversion in the Billboard Top 40. Which is why conservative criticisms of stagnation in art/science feel so blatantly hypocritical too.
If you get very into a genre of art, like for me is horror movies and metal music, you quickly realize there is a super deep well of amazingly high quality content that pushes the boundaries of the art form. There are passionate community members and creators that are using all the latest and greatest technology to produce ever higher quality art at less cost, expanding the amount of art and the number of people with the funds to create it.
If you look at the top-40 music charts and cringe just find music you actually like because there is tons of it being made and a community behind it. All the criticism about “modern art sucks” is such snobbish and flippant bullshit.