Sorry, but your thread is simply wrong. Decentralization is not synonymous with anonymity. Just because people use centralized social media websites does not mean they don't care about decentralization. There are plenty of bitcoin devs who are active on social media. Hell, this website is centralized. Just because we use it does not mean we do not care about decentralization.
Yes, there are individuals who only care about trading for profits and will give up all their privacy and security by using centralized platforms to achieve this. But to say no one cares about decentralization anymore is just wrong. There are more P2P platforms than we've ever had. There is more P2P volume than we've ever had. We now have decentralized social media such as Mastodon and Nostr. Decentralization is growing.