Ok, then we fundamentally disagree as I don't see anarchocapitalism as an ideal to strive towards. Not because I am a collectivist, but because philosophically

Ok, then we fundamentally disagree as I don't see anarchocapitalism as an ideal to strive towards. Not because I am a collectivist, but because philosophically I think it a far too narrow ideal for humans to aspire to. In a similar vein, I don't think free markets exists because of how humans are, not because they don't live up to some utopia. We might move towards certain ideals, but there might be a limit how close we get and beyond that there is no net improvement. Also, no, people cannot just not participate: if cryptocurrencies cause some wider issue then everyone will have to pick up the tab one way or another.