So? If this is a problem, sign up with the minimum amount of information necessary. (Which, as of time of writing, is first/last name, email, gender, and DOB.. and the DoB doesn't have to be legitimate)
You are not forced to share anything. If you want to use Facebook as strictly a messaging platform, there is no negative effect for doing so.
Characterizing it as "surveillance" is RMS's typical good-natured extremism.
..And if it's that much of a hot topic for you, you don't sign up. Or use fake info. Who's going to know, as long as your name isn't Clark Kent with a picture of Superman?
Also, singling out Facebook for what every advertiser cookie has done since the mid 90's seems a bit silly.
