The official name of the state is Republic of Macedonia. Short version is simply Macedonia. The state is recognised by most countries around the world including Slavic countries. FYROM is circulating among certain Greeks and Bulgarians, which is a marginal group. If Ssouth-western Bulgarians have Macedonian identity, then they are just like the rest of Macedonians living in different political states. The reasons for Macedonians living in Bulgaria disliking Macedonians of Macedonia maybe understandable to people of the region, but not to outsiders. It’s almost like being a self-hater. It’s like Belarusians hating Belarusians living in eastern Poland or Lithuania which would be rather odd.