While it seems that I may have triggered some extremely negative sentiment here with my honest question, I appreciate the responses that didn't assume I think Greek people are aliens or serfs. I'm quite ignorant of the on-the-ground realities of Greek life (having not visited yet), but I've read enough to understand that the economic conditions haven't been great there for some time now. Therefore, I think it appropriate to question how outsiders might be received under the current conditions. I apologize if this wasn't clear from my original question. Another commenter was correct in identifying the news regarding local hostilities in some regions towards tourists whom are viewed to be part of the problem and therefore met with hostility.

...slowly backing away... :)