My question. What is the Skopjan Ambassador in Canada (among other members of the diplomatic group of that country) doing having his photograph taken with a map that includes my hometown (Thessaloniki) in the background?
How would US citizens feel if a Mexican official were to have his photograph taken with a map including, say Los Angeles in Mexican territory?
As for the "oh, its a small country, don't worry, they can't hurt you". You don't get it. Things change. Greece didn't even exist as a country in 1821, but in 1921 it had the Ottoman Empire militarily cornered. Had it not been for Mustafa Kemal, it would be Greece in both sides of the Aegean.
And of course, there is the issue that it's damn wrong. The country named "Macedonia" has nothing to do with Macedonia actual, with the exception of a very small part of its territory, Monastiri (Bitola to them), which actually has a Greek population (and should be within Greek borders, therefore, but never mind). The area they inhabit is Dardania, Paeonia, etc. That is, if they want to connect it to the ancient era. It's ridiculous to name an area by the name of it's neighbor.