Agree. I suggest also looking into Meshtastic for emergency communications

Being non-diversified is an uncompensated risk.

People buy stock indexes despite Apple, Nvidia, Microsoft and Facebook overperformed in the last decade or two. There's plenty of academic research showing how diversification is important and is the safest way to expose to risk. In general stocks and crypto can lose or increase in value, or even drop to zero due to black swarms whether we like it or not.