> They can buy a Blu-Ray disk of a movie they want to watch
No, they can't. A lot of new releases never leave streaming services.
You still need a Netflix subscription to obtain some of the DVDs for their "netflix originals". They do still ship DVDs, but they aren't available to buy separately, you need the streaming subscription to access them.
Some "netflix originals" have DVDs sold outside of Netflix (i.e. on Amazon), but not all; you need to order DVDs directly from Netflix as part of their DVD service, I believe. (If they are even available at all.)
> Can buy a digital recording of a song, or a Spotify subsription
No, they still can't. A lot of indie artists release on Spotify but never make physical media of any kind. You can't buy songs DRM-free from Spotify.
The answer is "well don't listen to that song then" but this kind of voting is really dumb and people do not like to do this. They'll suck it up and throw money even if they hate it with their entire being. Because society as a whole has been conditioned to do this, unfortunately, and no matter how hard you try to start a revolution, this is a fact of life and you cannot avoid it.
Tell me: when what you want is no longer on the market at all, how do you vote for it? With your wallet? Do you just not buy its replacement? Nobody will care. Unless you manage to start a revolution all at once, you not buying something will be statistically insignificant.
-Emily