Indeed. KYC has a purpose though -- prevention of fraud, money laundering, etc. Getting rid of KYC without a similarly-effective solution for those things seems unlikely. Ideas?
There is no way to “get rid of cryptocurrencies” at this point save for shutting off the internet. It is not within the power of the state to prohibit, any more than prostitution or cocaine.
There’s plenty of legal ways of exchanging cryptocurrencies for real currencies, shutting those down would be a good start.