This is not true. All you need is to have multiple buyers with different tastes and a functioning discovery system that allows each individual to find what they like.
The latter is the opposite of what the industry provides. They promote what's popular, regardless of whether you'll like it.
And then they make it difficult for anyone else to do otherwise, because artists who want to be The Rolling Stones sign the record contract thinking they'll get promoted, and then they don't get promoted but the record company owns their songs and charges prohibitively high fees for streaming so independents can't afford to play it and let listeners discover it.
This is how they destroyed internet radio, for example. Before the industry lobbied to change the law law, there was a vibrant set of internet radio stations. Then the Kill Internet Radio Act passed and set the fees higher than most of the independent stations could afford without taking payola, and now "internet radio" is dominated by iHeart Radio, AKA Clear Channel, the same company that owns all the terrestrial radio stations that play the Top 40 on loop.