Taxes on capital gains are a 70 year old concept.
Just recognize the amorality of it. It can only be billed as a "duty" for "roads and schools" when pandering to the lower classes who have no choice in the matter, while recognizing those classes have the numbers to get you in office. But "taxes" are not an absolute on the concept of how a government can fund itself. Governments have to balance the consequences of how they attempt to raise revenues, by being competitive amongst other countries, as their ecosystems primarily rely on attracting or incentivizing investment.
The minute you realize the use case around privatization of global wealth you can begin to underwrite its probability.
Because the crypto platform provides the OPTION for that to happen at scale.
And crypto gives people globally the opportunity to make the decision and vote with their personal wealth (and mining power).
You say that like its an admirable goal we should strive for. Taxes built the roads and bridges you drive on, the crystal-clean water that flows from your tap, the lines that your internet runs over, and the (admittedly glacial) bureaucracy that prevents your city, municipality, province and country from descending into unorganised chaos.