Should TV networks try to block you if you don't look at the TV while ads are running? Or if you turn it off/switch channel/mute it? Same goes for newspapers and magazines - do you have a right to skip pages filled with ads and not look at them?
...all the examples you gave are services you pay for. Spotify is preventing users from blocking ads on their free tier.
Broadcast TV is a thing...
Not necessarily. There are free TV channels and free newspapers as well. Spotify is trying to prevent people from choosing which data packets will their devices process or not. Which is exactly the same as a publisher trying to prevent you from not looking at a page with ads, or cutting it out. In my opinion, users have a right of modifying anything they get - whether free or paid, which includes processing and filtering data that comes to their devices.
No, just like Spotify doesn't ban you for turning off the audio during commercials or looking away from the screen.
The only difference between turning off the audio and ad blocking is at which point the data gets blocked. Turning off the audio means that it gets filtered by your phone's audio processing system. Ad blocking means it gets blocked on the network level.
If you install software into your TV that blocks the ads, then they should be able to boot you off. You have a right to not listen or pay attention to ads. However, you bring up a good point with the magazines example. That opens up a whole new can of worms.
Brings to mind the series 1 second episode of Black Mirror.