Satoshi's dream is still alive and It is fighting with the imposition of CBDC for compulsory use by all and the abolition of cash. It is the only way to escape the current financial system and central banks that is why they want to control Bitcoin price and with attempts to ban it.
Not like this is Satoshi Nakamoto's dream in creating bitcoin, there is no concept of Bitcoin development that was carried out by Satoshi to eliminate the function of fiat currency, I have almost never encountered this concept in the current journey of bitcoin.
Because the realm of taxation is the jurisdiction of various countries, although there are certain countries that are free from the use of taxes or smaller in number. If you consider Satoshi's dream to be a failure, then at this point we will never see bitcoin again, the tax has no direct relationship with the bitcoin link as stated by the OP. While it is true that as a rule trying to control bitcoin by trying to ban it, that also does not stop bitcoin, because the freedom that people expect is within the realm of the Bitcoin concept.