Not for 2000 years? Not since BC?
The Greeks safeguarded Europe from Muslim armies for hundreds of years. It was only defeated because of the treachery and pride of your feudal elites. The Muslims could have been defeated in Egypt, for example, but your treacherous and stupid feudal lords in the Crusader states... that and don't get me started on the Fourth Crusade.
Yes, bloody Frenchies didn't participate in the Battle of Vienna in 1683, because of their stupid feuds with the HRE. They deserve contempt for that, but their saving grace is the Battle of Tours.
Not only that, but the Greeks continued burning the light that was Rome while Western Europe descended in to the Dark Ages. Although the Muslims deserve credit for preserving Greek and Roman intellectual traditions, Greek contribution here is grossly underrated.
Yes, the US, Australia, and Canada are also indebted. However, it seems the EU is responsible, but I would be agreeable to the US contributing up to 50%. After all, the US is responsible for 40%(?) of the west's GDP.
WFS, not completely sure what you said. I am not fluent in pirate speak. But I think you said that Western civilization has many influences outside of Greece. I'm not disagreeing with that. I didn't mean that Western culture is unchanged or a direct continuation of Greco-Roman civilization. However, at the end of the day, Greek influence is titanic and undeniable. It's hard to look at most aspects of a Western culture without finding fingerprints from Classical Greece.