On the other hand, if you're an EU citizen living in the United States for the last 20 years (meaning, before the advent of Facebook), you technically have the right to request that all your data be deleted from Facebook's servers.
Now, how will you know if they have data on you? Can you just assume that they do and make the request anyway? Will tech companies begin verifying your citizenship to tell if GDPR really applies to you? We'll soon see.