Earlier quoted context omitted.
How do you know if your birthday isn't in some publicly accessible government database somewhere? Did you try to find it? Did you hire a private investigator (who has quick access to all those databases) and ask them if they can find your birthday?
If it were, I would let the government know that's not okay. Hackers would be one step closer to being able to sign up for a credit card under my name. If it's true that that information is out in the wild now, then I expect government to tighten their tech security procedures.
How do you think the RNC got birthdays for 200 million Americans in the first place? Public records. 200 million Americans are NOT affiliated with the RNC.