It may be that what is going into the database is a lot of information on family relationships and DNA.

Your network of family relationships is like a permanent address, and while I may not be able to find you when I want to, it may not be long at all before I’m going to snag someone you are related to, and then start following the strands of your personal web back to you. This fits together well with today’s capabilities like cellphone monitoring and overhead surveillance.

Literally the only way to evade a system like that would be to start running now, away from everything and everyone you have ever known.