The problem isn't marketing or FOMO. The problem is the average person barely understands what you just said, and we can't expect them all to become domain experts, especially when many people lack the fundamental research skills and experience needed to intuitively grok these technologies.
We have to use our intelligence and expertise to make applications which take care of users and their privacy, without them needing to suddenly become overnight computer experts. Most of the tooling I see today has (understandably) massive UX issues and is largely relegated to at least the mildly technical.
We need new and open Facebooks, TikToks, calendars, operating systems, etc. which protect and empower people but don't complicate their lives and stress them out, which leads to security and privacy fatigue. Even my current operating system, macOS, is so intensely user-hostile and obfuscated off the happy path, despite being heralded as a champion of human-oriented design.
We need a modern GNU-like organization but focused on building the social/web tooling that most people today are using.