Superb piece. Your passion is compelling.
"...watching people who I thought hated centralized social networks because of the harm they do giddily celebrating the entry into the fediverse of a vast, surveillance-centric social media conglomerate..."
What about our lofty fediverse principles of trust and safety? That's why people came here. Let's strengthen our defenses. Build community consensus. Be clear eyed about surveillance and demand protections as a condition of federation.