If the governments really did go after decentralized cryptocurrencies, the question is, where would they focus their efforts? We've seen them launch cases against a few coins like XRP, LBRY, KIN, etc... But c'mon, there are more than 12,000 (listed) coins on Coingecko. This is nothing but a game of Whac-A-Mole. In the end it will have to occur to them - "If you can't beat them, join them".