The first paragraphs of that are good points. The rest is just Stallman going on a political rant attacking strawman arguments.

There would be music programs allowed only for rap music, and others allowed only for classical music.

I get where this is coming from, and it’s good to move away from the libertarian fantasy that technology is neutral. But in practice, it is very hard to actually use.

For example, you can’t use any GPL code that you may want to include, as that forces your project to also become GPL. And anyone using your code would also have to walk on eggshells for licensing, and they would probably just avoid it in the first place.

It might be useful to some very specific end products, but this will likely not see a lot of adoption.