The modern Greek carries zero 0% of blood of the ancients. Romans genocided mixed with them and assimilated them. Later turks did the same.
When greekophiles came to Greece in the revolutionary War they found people who were anything but greek. Almost every major revolutionary was an arvanite albanian. When the islands were liberated people there called themselves Roman.
They are a mongrel rave of assimilated people who think they are pure descendants of Alexander the great while they are 92IQ , low impulse control, littering, self serving bastards who only care about their own comfort and their immediate family doesn't matter if they fuck over everyone else. They created a low trust society much like southern italy or latin America.
I find it extremely funny when these mongrels become ethno nationalists and oppose immigration of people who are fleeing war and poverty because they don't want mixture failing to see they are a mongrel who looks nothing like an ancient greek statue.