One of the unspoken parts of the open source social media movement is to put the 'social' back in the 'social media'. There has been a fine line between true user-driven content and centrally-controlled (and often authoritarian-lite) algorithms; with major players (advertisers, oligarchs, governments) putting their thumb on the latter half to ensure that everyone stays isolated, divided, and pacified.

Everything you called out is a symptom of that control: engagement baiting, algorithmic manipulation, censorship and suppression. Absent these items, social media can be an incredible force for good and a hopeful longer term future of more peace.