the Slavic people in Macedonia are free to name their country as they wish.
Is it freedom - to rename ancient-Paeonia to 'Republic of Macedonia' ?
Is it freedom - to name a hybrid mixed Serbo-Bulgarian language to 'Macedonian-language' ?
Politics comes into play here - those actions were politically motivated actions, taken in 1944 and 1945 respectively!
Country-Names generate Nationality. Language-Names generate Ethnicity - Comrade Jozep Broz Tito knew that, when he created the Peoples Republic of Macedonia in 1945.
The peoples of FYRoM are free to chose any name they like for their newly established country but the rest of the World is also free to judge them on that choice!
FYRoM is not Macedonia geographically and the peoples their are Slavic - culturally and linguistically! Macedonians on the other hand, live in the same place, walking and talking Greek-style for >3 Millenniums...can FYRoM compete with that !
Evidently, FYRoM underestimated the international communities collective intelligence on matters Macedonian.