I listened to many podcasts and several were made by Bitcoin-only folks. I learned more and more about the differences between Bitcoin and everything else. The decision to be Bitcoin-only was easy once I learned enough.

As someone that is distrustful of the state, my interest in Bitcoin grew the more I learned about it. Bitcoin is a revolution that will change the world and challenge the current power systems. Crypto in general involves other stuff: centralization, trust, core teams, pre-mines, greed, scams, etc. I'm simply not interested in that.