And crypto is around for 10+ years. Retroactively trying to tax something which was not even regulated properly at that time is theft imo.
You are 100% correct. In the US, in theory, (at least) it's "guaranteed" in the Constitution that
"No Bill of Attainder or ex post facto Law shall be passed."
Why tax evasion? What I just did is to buy and sell cryptos over the years, even before the government knew what crypto was.
This is precisely the issue that we all face who back then bought or received cryptocurrencies and just let them sit until, for example, today. - There is no excuse for not having reported it to the tax authorities, from their perspective, even though at the beginning they did not at all recognize it as a currency.
If you want to convert them into fiat without worries, I would create a new thread inside the mentor group gold and ask there again; then you might get some different answers.