The vast majority of the crypto world failed to understand one key concept, money is not the value for which goods/services are exchanged, it is the value by which they are exchanged. People do not have a use or value for money beyond what it can be exchanged for, if no one is willing to exchange for it, it has no value.
Crypto only had value as a currency if people would accept it for goods or services, and the only thing people ever accepted it as payment for, in any meaningful capacity, were illegal goods and services. The value beyond that was purely based on a speculative ideological assumption that people would abandon the traditional banking system for a new system that they couldn’t buy anything with.
most of the bitcoin being spent on electricity and hardware gets exchanged for actual currency before it is spent. And most of the luxury goods sales are gimmicks and limited time.
And there is a huge amount of criminal activity with bitcoin still, they just mainly use it to launder money now as the transactions are impractically slow and costly for anything but particularly large trades.