Greeks will always use the Slav card. Greece was not spared from this invasion and Greeks today are more Slav Albanian than anything else.
Your point being?
If we're indeed Slavs,or Albanians, or sub-Saharans, or Mongoloids, then?
Does that make us untermenschen, while you our true-original-authentic-pure-blooded ancient "Macedonian" neighbours to the north are the Übermenschen in the region?
Do you realize how stupid your arguments sound?[Taken from an older post of mine during a similar discussion]
During the 6th and 7th centuries A.D., some Slavic groups moved towards the southern areas and settled in the Greek territories, where they formed Slavic enclaves - named "Sklavinies-Σκλαβινίες" by Byzantine sources, especially in west Macedonia and Thessaly. Being cultivators and cattle breeders, they settled mainly on mountain slopes, less often in the plains and very rarely near the sea, as can be ascertained from toponymic material. For slavic toponyms, see the basic work by M. Vasmer, "The Slavs in Greece", Berlin 1941, pp. 176-229
A basic policy of the Byzantine administration to overcome this problem, was a demographic measure, the forcible transfer of populations. By transferring Slavic populations to Asia Minor, the Byzantine empire achieved two things:
1) on one hand the Slavic element in the Greek area was weakened, and on the other hand assimilation was facilitated, since Slavs who were transferred to Asia Minor found themselves amidst a flourishing and numerous Greek population. But this demographic measure was even applied vice-versa, thus,
2) Greek populations from Asia Minor were transplanted into Slavic populations ("ἐπὶ τάς σκλαβινίας") in order to reinforce the Greek element in these areas. So we learn, that emperor Nicephorus I (802-811) established in the northern Greek area populations which he transferred from all administrative districts ("ἐκ παντός θέματος") of Asia Minor. The 17th International Byzantine Congress. Major Papers (Washington D.C., August 3-8, 1986) New York 1986, pp. 345-367
We find out, therefore, that the Byzantine state followed a realistic and consistent policy in order to cope with the problem of Slavic settlers, a policy that led to the control and integration of Slavic races by the empire. In this way the Byzantine state contributed decisively to their assimilation by the indigenous population and to their Hellenization.
Now let's move to ethnography:
1) The almost total lack of remnants of Slavic civilization (burial customs, dwellings, techniques and types of ceramics) testifies to this assimilation, which of course, could never have been achieved without the presence of an indigenous Greek population.
2) The whole culture and artistic production of the area was purely Greek and greatly influenced SE Europe during the years of the Ottoman domination.
The main characteristics of the culture of the Slavs during the first period of their settlement in the Balkan Peninsula are:
a) the burning of the dead,
b) the hand-made ceramics with certain shapes and decorations, and
c) their half-underground hut for dwelling.
However, except for two rare exceptions (15 urns containing the ashes of the dead and some vases), no indisputably Slavic objects have been found on Greek soil.
As Paul Lemerle writes, "Byzantium christianized, civilized and assimilated these Slavs, making them Greeks. And this is one of the most impressive victories of the Greek genius" P. Lemerle, "La Chronique improprement dite de Monemvasie: le commentaire historique et legendaire", Revue des Etudes Byzantines 21 (1963), p. 49
So, by the 9th century AD, the Slavs living in N.Greece, are completely assimilated by the more prosperous and culturally more developed indigenous Greeks.
For the Arvanites (and not Albanians) I won't even bother giving an aswer.
Please do not continue these stupid theses, they don't stand a chance before a trained historian or ethnognapher.