Well said. Also, taxations would only be done through third party wallets or banks such that if you would put an amount questionnable (have experienced that one) but there's no way they could trace all of your assets given that this industry is decentralized. Regarding satoshi's dream, who mentioned it given that we don't even know who he really is? These are just mere assumptions by most of us since this industry speaks for currency, then it is not surprising that people like us are assuming that the goal of this technology is to 'surpass' fiat currency. Unfortunately, things win't work that way. So for the meantime, we should atleast make use of this technology by means of investment.
Do you mean that taxes only apply if you make transactions in large amounts, because I see small transactions are also taxed, and even then direct deductions from the bank, whether as administrative fees or taxes, I don't know.
In some countries bitcoin is still used as an investment, has not been used as a transaction tool to purchase goods or services, which means that bitcoin still has to be exchanged for fiat currency when used to make purchases. As you said, we don't even know who he or the small group that called himself before creating bitcoin as a decentralized digital currency, that's why the mystery of bitcoin hasn't been completely solved until now.