So there are nationalists like everywhere in the world. Is that really an issue? Is this even remotely plausible. I mean Macedonia occupying parts of Greece? Doesn't that sound silly to you? Greece is NATO member which Macedonia is trying to join while being blocked by Greece. Do you think Macedonia will go to war with NATO? Come on, this problem was used by corrupted politicians on both sides as an excuse for bad governing. Oh it is hard to deal with the real issues so lets fight over irrational problems.
And no, large part of the population does not share those views. The reason is simple, those views are unrealistic and have no place in today's Europe.