You didn't have to comment almost every line, it's juts an opinion based on my personal impression and feelings.
Also, I chose to respond you here, rather than in that thread of yours about meta-ethnicity, for simple reason - others have their own impressions and opinions about meta-ethnicity based on their own historical experience, and somehow their experiences have nothing to do with us Slavs, so I really don't expect of them to have the same view as us and to understand us, simply because most of Slavic nations had totally different ethnogenesis than the rest of European nations or ethnicities.
So, basically different nations and ethnicities are different and they all had different ethnogensis ( yeah I'm a
genius, am I?
), because of this no strict definition about the term nation, ethnicity, meta-ethnicity can be applied to all nations etc. and at all times.
One nation - one definition of nation, with an approval of course that some cases of etnogenesis can be similar.
You're a well educated man, interested in various things at least, so etymology of Greek word Meta-Ethnos shouldn't be very hard for you, right?
Meta-Ethnos = beyond the ethnicity, therefore Meta-ethnic identity is certain affinity that put our ethnicity into larger group of mutually related ethnicities. That's the general definition, based on etymology, but each nation has it's own reasons and circumstances to feel or don't feel the affinity toward certain meta-identity.
Like I said Slavs are meta-ethnicity because they have common Slavic ethnic root, and it's not just language that connects them, otherwise certain folklore and other ethno-psychic constant patterns, no matter if they're music, dance, legends, myths, various symbols ( Kolovrat f.e.), clothings, paintings, sculptures, customs, beliefs etc, wouldn't repeat in each of ethnicities that show the meta-ethnic affinity. Of course, there are always differences - local and temporal, but also religious and civilizational. But in general, ethnicities that show meta-ethnic affinity are more similar to each other (in the terms of basic ethnic traits) than to others.
For example, we Serbs share the same religious and cultural-civilizational affinity with the Greeks, but when it comes to the basic ethnic traits, we simply fall into two totally different categories - Serbs being Slavic, Greeks being Hellenic.
Sometimes, even local differences inside one ethnicity can be bigger than the differences between the two ethnicities inside meta-ethnicity.
And one more thing, I'm not forcing any of you to feel the same way as I do, it's the individual thing and the matter of heart and soul. Perhaps Slavic ethno-psychic constant is notably weak or absent in you, for various reasons, one including not being Slav at all, the other one the result of auto-censure. I can't say, that's up to you to find out... if you're interested at all, that is...