The author just insists that Israeli government genocide is bad and that the ordinary citizens are complicit. I think the implicit logic must be: bad people should be punished, depriving them of music punishes them. While it might satisfy a craving to hurt the bad guys, I think it’s much harder to claim that this would help stop the genocide.

It's because the mindset of the people who make these types of arguments is rooted in childish ideas about human behaviour. It's why younger people in particular are so big on cancel culture, because they still believe that taking away the toys magically changes the behaviour of adults out in the real world. What actually happens when you cut people off completely is that you lose access to all the outlets through which you can begin or maintain a dialogue. Who do these people turn to when you're no longer talking to them? The culture warriors never get this far because they lack the life experience to understand how to navigate difficult relationships. Social media has unfortunately contributed significantly to the spread of this infantile mindset where "the world is full of good people and bad people, and if we disagree about something then you're clearly one of the bad people and I am no longer talking to you".