Mick Jagger can't carry a tune in a bucket and Leonard Cohen couldn't even find the bucket. John Lennon lost an infringement suit to Chuck Berry for borrowing heavily from "You Can't Catch Me" to create "Come Together," and RUN DMC were sampling away back in the 1980s. Madonna (now 64 years old) sang in her now-vintage underwear a generation ago. Frank Zappa was singing naughty words in songs about naughty things a half century ago.Every day it gets harder to find new good music.
Almost everybody is an artist, as you don't need to know how to sing to be a singer.
No need to know how to play an instrument, just copy/paste pieces from the work of others.
Want to attract tons of people to your concerts? Sing in underwear.
Want the crowds to cheer? Curse, curse, curse, swear, swear, swear, and be very explicit.
Under these conditions, I don't really care if the collection has reached 100M songs.
High volume doesn't equal to high quality.
While individual tastes may vary, no one with any credibility could say the aforementioned artists -who each committed at least one of the effronteries you listed above- did not produce any "good music."
Of course, while each generation also creates an ample supply of forgettable tunes, there are always great musicians both famous and obscure who produce amazing work. With the advent of streaming services like Spotify or Apple Music, there is no barrier to digging around in old back catalogs and new material alike.
The truth is, if you can't find "new good music," it's because you're not looking for it.