Ethiopian LGBT Activist Banned by Facebook Under Real Name Policy
time.com
time.com
Whether or not you agree with the real name policy, it's the company's policy and they are entitled to enforce it. If you don't like Facebook's terms then don't use it.
Banning people for using their native or traditional names or whatever is a separate issue; "HappyAddis" does not fall into that category.
Under pressure from cross-dressers, Facebook said it would relax the "real name" policy and allow people to use aliases, but only if they are generally known by those aliases.
However, reportedly Facebook has not really changed the policy.
Even if Facebook makes this change, it will be unacceptable because companies and the state will be able to connect the account with your real identity. In order for the site not to mistreat people, it must let you have one account to show your boss and your parents, another for your friends, and others for various kinds of political activism"
https://stallman.org/facebook.html#realname
Also, real names allows US gov and other non-democratic regimes to identify people and their personal networks and go after them.
The entire point of Facebook is that there is an easily identified one-to-one correspondence between your Facebook contacts and people in the real world. If people are allowed to become effectively anonymous then it fundamentally changes this experience.
I'm cool with facebook knowing my mail and my real name but there are some people that I don't want to hear from on the phone. Were they to email me I would just mark them as spam.
Also if facebook knows my number then it can follow me whereever I go, or rather, whereever I go while my phone is powered on.