I've long concluded that's just Darwin in action picking off the stupid. Covid is doing some nasty things to society, because the decision to not have the vaccine is in many cases potentially more detrimental to others around them than the person making that choice. This leads us to a situation where anti- vaxers are persecuted rather than just ignored or laughed at as would be the case if they espoused other conspiracy stuff. That persecution comes from fear, as does the anti-vax sentiment. I've come across 3 anti vaxers out of about 100 folk where I work. The two who I know to talk to well are genuinely terrified of the vaccine and sense the world closing in around them as various freedoms (and some of our work opportunities) become the sole prevail of the vaccinated. Not a representative sample, bit if these two, one is way below average intelligence, and the other has a serious recent history of psychosis. I get frustrated with them, but their fear is genuine if not rational. I guarantee that anything like this Spotify spat or other censorship they will pounce on as proof of a grand conspiracy.