It is through my social media platforms that I learn about how mitigate the consequences of people tracking my data. I am better informed about how it works and what to do to protect myself from it. It is also through those platforms that I am able to join with others concerned about this tracking and achieve a mass influence to do something about it.
Deleting my accounts would cut me off from this knowledge; it would not protect me from people using my data, (which is gathered in way more places than just social media); and it would limit my ability to fight back.
The Obvious? 