The people of Zimbabwe and Venezuela appear to disagree with your sentiment that national currencies aren't risky.
Your notion that crypto fans can't separate economy from politics doesn't seem right. Re-read the Bitcoin genesis block. Bitcoin began because of bullshit by bankers and barristers. Politics is the reason for Bitcoins existence.
The people of Zimbabwe and Venezuela suffered a fall in productive and/or export capacity (agricultural and oil respectively).
Never mind the currency, crypto or not, you can expect inflation when real resources are reduced and you have to grow the monetary base to keep the economy working. See (1) for more details.
I didn't say anything about risk.
I didn't say that crypto fans can't separate economy from politics, quite the opposite, I said that, it seems to me, crypto fans think, erroneously, that economics can be separated from politics.
Your notion that crypto fans can't separate economy from politics doesn't seem right. Re-read the Bitcoin genesis block. Bitcoin began because of bullshit by bankers and barristers. Politics is the reason for Bitcoins existence.