BTC will fail or much much much worse become the money of enslavement if privacy is not added.. Unbreakable privacy..
It's there and bitcoin has its privacy but what's concerning are their trackers that have been doing it and they've got connections in the exchanges and through them, a user that's confident about them will be one of those that will be traced.
P2P transactions are good as it is and no other people between the two will know your transaction not unless you step on exchanges and they start asking for kyc compliance.