You don't avoid drowning in water by avoiding water, you avoid it by learning how to swim. In the case that you find it necessary to swim, you now aren't limited to drowning.

Your privacy extends beyond what you personally expose, being aware of what others see and use your information for and how your information can be protected is how you maintain privacy. You can't fully avoid others keeping information about you online by not being online (banks, retail, flying, identity, tax information, pictures on facebook, school records, ...), but you can understand the evolution of systems that would use your personal information to decide on how you can obfuscate or limit sending information to maintain your privacy. Holding bad actors accountable for mishandling information isn't contradictory to trying to keep your privacy.