Does any one have right to change my identity?

Hello, I'm from Macedonia and becouse of that I'm Macedonian. But all that can be changed in the next couple of days or weeks becouse Greece denaide our identity.They say that we have to change our country name from Macedonia to New Macedonia or Upper Macedonia with that to change my identity or they will block our entry to NATO and European Union. Also they say that we cant use the name Macedonian any more (Macedonian Lenguage, Macedonian Flag, Macedonian Athem, Macedonian nationality) with that my identity is lost and than im somthing alse or NOTHING. My country name is not just my or name of the people who live in Macedonia thats name of my future sons and our heroes who died for freedom of my country so i dont think I or anyone alse have the right to change that name. We already change our flag and our national athem just to avoid conflicts with greece but they want more and more untill they totaly erease the Macedonian country and culture. SORRY FOR MY BAD ENGLISH