Memes

Q) "Without any way to ground the ethnographic concept of Aryan-cultural continuity, from ancient Crete to modern America, how can you define Western cultural trait exclusively through racial ethos?"

A) The concept is grounded in the emergence of the Indo-Europeans in the 2nd millennium B.C. This is demonstrated by the concurrence of archeological, genetic and cultural evidence. The language spoken by the majority of Americans today is a well-attested Indo-European tongue derived from the ancient Aryans.
Because life is the sum-total of complex interactions, there is no absolute 'exclusivity', racial or otherwise [although groups like the Jews will claim to racial purity]; however, this does not mean that there is 'no such thing' as cultural differentiation. Clearly there is.

Q) "A broader approach to the creation of human cultures seems more realistic.Univesally all human culture developes through the same forms Family, clan, tribe. Even the differentiation into (King, warrior, preist, lumpen) is the same rank of order organization,no matter if its Aryan, Egyptian, Aztec, Japanese, Etruscan, Dravidian ect..

A) This is blatantly untrue. The Aboriginals of Australasia for example were at the level of Stone Age hunter-gatherers up until at least the 19th century when their 'idyll' was spoiled by Europeans. Similar is true in regions of South America and Africa. An examination of certain African hunter-gatherers will show the lack of forms recognisable as 'kingship', hierarchy etc.

Q) "Maybe the West would have been stagnant like many other cultures if not for the cross-fertilization of the Greeks with the east and the emerging Western world with the near-east?"

A) Of course, this is the Faustian aspect of Aryan culture, and it contrasts with those static cultures [e.g., ancient China, or the afore-mentioned Aboriginals of Australasia].

Q) "The idea of blood-race traits continueing materially through institutions as epiphenomina to be rejoined later by (Psuedo -Aryans?) that can breed (in or out)self organizing memes seems just a little too mystical.

A) No, you are confusing the biological gene with the cultural meme.
There is nothing 'mystical' about it [although 'mysticism' is a typically Aryan meme]. After all, we are talking of quite a short period in historical terms, and of eras when the movement of peoples was far more difficult than it is today. There are examples of ancient Persian, Hittite, Minoan and Scythian iconography which show how the European or 'Caucasian' type remains unchanged.

Q) "Is there race continuity in the west? Sure the same race that left the forests of Africa. homo-humourus?".

A) It is far easier to track the development of Aryan culture from 1500 B.C. to the present, than to demonstrate the evolutionary hypothesis that Europeans originated in Africa [there are other evolutionary theories which claim parallel origination of various hominid groups in different parts of the world].