If there's one thing the music world should know by now, it's that.
(Hell, one of the best-known punk groups, the Sex Pistols, was a boy band put together by Malcolm McLaren. Sid Vicious was McLaren's idea.)
Punk doesn't mean indie.. but the simplicity of technique makes it a natural fit
"Mass-marketed" just means that something is widely promoted. Many of the most creative, influential, and authentic musical groups are "mass-marketed".
"Commercial" doesn't really mean anything in this context, as presumably everything that you listen to on the radio/streaming services is commercial.
"Pop" is descriptive of the style of the music, not how it's produced (there are indie pop groups).
"by committee" means that multiple people contributed to it. Do you think the only valid creative process is one where somebody works in isolation? If so, that disqualifies pretty much every band / non-solo act from meeting your standards for authenticity.
It means dumbed down to the lowest common denominator. It means being told that instead of deeply personal, complex, and potentially offensive lyrics you're just going to repeat a word or small phrase over and over and over because that sells better doesn't alienate anyone with difficult words or things that might offended them, or might discourage the use (and sale) of that song in commercials, grocery stores, overseas markets, or film soundtracks.
Commercial interests (the desire for as much money as possible at the expense of all else) overrides what would have been deliberate artistic choices in order to maximize profits leading to a landscape of homogenized bland overproduced and unchallenging art.
We've seen many changes in music as a direct result of commercial interests overriding the preferences of artists (and listeners) including the loudness wars, the end of the album as a cohesive work to favor itunes downloads of single tracks, and the lengths of songs getting shorter and shorter to the point where bridges and entire verses are removed.
Not everything you hear on the radio has been fully compromised by commercial interests, but it's a good bet compromises were made and commercial interests have had more influence of what you heard on the radio at all than any other factor (talent, skill, popularity, artistry, etc.)
It literally doesn't though. Like, that's not the meaning of the word "commercial" in any sense.
Your favorite indie band is commercial. Your friends who charge $5 for their shows are commercial.
Your issues aren't with "commercial" musicians, they're with musicians who prioritize commercial success over artistic expression.
I don't think is a new phenomenon, and actually think it's a lot less prevalent now than it was in the past. With free streaming services, most people have easy exposure to a much wider range of music, and aren't relying on the radio to dictate their tastes.
There have been dozens of albums from the last few years that have had huge commercial success, and also taken big artistic risks. Happy to provide a list of recommendations if you're having trouble finding good new music.