I explicitly do not call them currencies because they cannot be used as such in the real world. All these tokens are extremely volatile and always used by speculators which makes them useless to be used as a currency.
It is fake money that is being cashed out for fiat money on these unregulated token exchanges, not to mention the decentralised ones.
As I said, they aren't useful at all in the real world legally, only on unregulated exchanges where only mostly criminals are able to swap their tokens for fiat from their scores of ransomware raids and scams.
I would be in favour of regulations needing to kill this part off as Monero and Zcash isn't accepted on most of them. Not to mention you cannot even pay your taxes with these crypto tokens.