> In short, if cryptocurrencies threaten the power of violent governments, they will use violence to destroy cryptocurrencies. There are smart contract based s

> In short, if cryptocurrencies threaten the power of violent governments, they will use violence to destroy cryptocurrencies. There are smart contract based solutions like Ethereum. The latter offers to create system which fundamentally avoids disputes (like a lock, once you lock your home, you don't have to worry about someone easily just entering and squatting your home). Govts have no reason to oppose this, just like govt have no real reason to oppose people using Uber to hail rides. Smart Contracts can also create dispute resolution mechanism which does a far better job than today's judicial system or the opaque arbitration system we have today. Again, govts don't have a problem with this. You're confusing a smart contracts based blockchain platform with 'replace-the-dollar' cryptocurrencies like Bitcoin Cash (not mentioning Bitcoin because they aim to replace Gold from your portfolio, and not the cash). These things threaten the govts, but the former category of technology doesn't.