Personally I left Twitter less because Musk owns it now, and more because Musk's changes turned my previously tolerable feed into a deluge of far right drivel. Expecting me to keep using it is like expecting me to keep shopping at a grocery store that replaced its bread aisle with a swastika-festooned exhibit glorifying the conquests and exploits of Hitler and his Nazis---even if I am generally apolitical, I will have to start shopping somewhere that sells bread.

Notwithstanding the above, given how powerful network effects are in social media, I think boycotting platforms operated by people like Musk (I struggle to find the words to fully encompass how repulsive he has become) is arguably one of the more effective forms of protest available to people, and I encourage them to exercise it.