I'm not convinced crypto has failed to be a value store or an effective means of currency and these "arguments" don't really talk about the meat of the problems crypto faces.

1. Regulation is pretty much the defining factor in cryptos status as a "real" currency. It's never going to be legal tender without legislation.

2. The idea that the value of a dollar is intrinsic or demonstrable is hilarious. The gold standard is long gone and the petrodollar is a doomed idea that fluctuates wildly. Economics is neither predictable nor rationale, because humans are not. See: gamestop.

3. The amazing derison on the subject. Only America could develop such a polarizing narrative about something fairly mundane.

4. I work in fintech in a part of the world that's still developing. The banks should be scared of crypto and banks such as Monzo. The key quality here is ability to react to a market. Crypto is not as quick as cash but it's MUCH faster than inter-bank transfers (st least this side of the world).