I'm a generation older. To me, there were three big shifts. One was that Facebook/Twitter/etc. proved that web publishing could be made more convenient by maki

I'm a generation older. To me, there were three big shifts. One was that Facebook/Twitter/etc. proved that web publishing could be made more convenient by making it more centralized, and that access to an audience was, in some way, more important than access to publishing tools. No matter how good open web publishing tools got, they couldn't compete with Facebook et. al. at providing some access to an audience, even if that audience was as small as your friends and family. The second was a shift in who developed "internet infrastructure." In the 80s and 90s (and before), it was mainly academics working in the public interest, and hobbyist hackers. (Think Tim Berners-Lee, Vint Cerf, IETF for web/internet standards, or Dave Winer with RSS.) In the 00s onward, it was well-funded corporations and the engineers who worked for them. (Think Google.) So from the IETF, you have the email protocol standards, with the assumption everyone will run their own servers. But from Google, you get Gmail. The third -- and perhaps most important shift -- was the move from desktop software to web + mobile software as the primary computing platform for most people. Such that even if you were a desktop user, you did most of your computing in the browser. This created a whole new mechanism for user comfort with proprietary fully-hosted software, e.g. Google Docs. This also sidelined many of the efforts to keep user-facing software open source. Such that even among the users who would be most receptive to a push for open protocols and open source software, you have strange compromises like GitHub: a platform that is built atop an open source piece of desktop software (git) and an open source storage format meant to be decentralized (git repo), but which is nonetheless 100% proprietary and centralized (e.g. GitHub.com repo hosting and GitHub Issues). You ask how to "dismantle" this. I've long pondered the same question. I am not sure it can be dismantled. It doesn't seem like these shifts can be undone. Where I've personally ended up is that small communities of enthusiast programmers and power users can embrace open source, open protocols, and decentralization for its obvious benefits, but that it won't ever be a mass market again.