This is a valid opinion to have as a consumer in the here and now.

However, if you think about the bigger system and how it will change in a few years time, you'll notice that the matter is not quite this simple. It's easy to imagine that no single musician is brave enough to take the first step onto a new platform devoid of users, just like you are not willing to jump to a new platform devoid of musicians. And if no artist takes the first step and no user takes the first step, then the status quo will prevail. Now, that may not necessarily be a bad thing. But if artists are not paid enough to continue making music for Spotify, then they'll stop making music for Spotify. That's fine if you like mainstream music of whoever games the system successfully. But it's easy to see how that would be a loss to some people.