Had he of skipped America, or the state I live in, Texas, The second biggest(so I don't think it's possible for him to miss that), I would've merely corrected him, and asked him to add it.
I understand your country's history, and why it may be offensive that Turkey is there, but contact the maker, ask him, if he doesn't add it for any reason, other than he has discontinued this map, then you can be offended.
Otherwise, it's childish.
And it's not YOUR country, it's the one you live in.