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The bigger question behind all this in my mind is whether crypto actually solves any useful problem that anyone cares about.
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Very simple. Show me a poor, homeless person, that accepts credit or debit cards. In person cash works but over the Internet, across international borders? Crypto currencies solve this very simple problem.
I was also going to answer the unbanked. No need to be homeless. In many countries bank accounts are rare. In some countries where bank accounts are more common, fees are very high and there are lots of restrictions on international transfers.
https://en.wikipedia.org/wiki/M-PesaM-Pesa is huge, but run by the phone company and with much higher fees than bitcoin. There is demand for crypto!