I agree that Bitcoin is that perfect storm of technological and financial obfuscation that's made the ideal air cover for charlatans.
However, organizations contributing to this space are trying to extend the functionality and utility of these technologies. For example, check out Chainlink https://chainlinklabs.com/research,
Other forms of interesting decentralization applications look no further than IPFS & Filecoin. https://protocol.ai/
You're not wrong; there are scams and a lot of snake oil, but don't let that deafen you to what direction thoughtful applied use of the technology can produce.