We're allowed to avoid consuming the work of artists we think are horrible humans. We're allowed to encourage others to do that too even. None of that is purging or censorship.
You can still stream all of Crystal Castles songs on every platform, you can still buy their music, their albums still have hundreds of seeders on trackers. Just as I'm sure you can buy your Dilbert books.
Telling people to maybe look up to better humans, which it needs to be stated have always existed and aren't a modern invention, should be encouraged.
One of the other threads in here an OP states that we should use this moment to reflect and do better in our own lives, what is wrong with this viewpoint?
We've seen countless examples of people getting sucked into social media holes and I've yet to encounter a single case where this has ever led to healthy outcomes.