I think you don't understand.
Not long ago every transaction was P2P and private.
It's a huge experiment we are currently in to have almost all transactions transparent and therefore ready to be censored, confiscated, extorted.
Bitcoin may fail as a store of value when taxation gets burdensome. You simply don't want government to know a single thing about your wealth not to speak of all the leaks KYC BTC are already enabling. The moment they know something about your wealth the moment they will start to plot against you to steal it from you.
Government is not based on mutual respect. It's based on coercion in every dimension.