I also speak Serbo-Croatian and travelled the Balkans extensively. I think to call it just a subculture is a bit harsh. There's definitely a significant chunk of the population that does miss Yugoslavia and bratstvo i jedinstvo. In my experience, the sentiment is actually strongest in Bosnia, which makes sense, as it is the most mixed of the successor states and also the one that suffered the most from petty nationalism.

Personally, I also think that Yugoslavia was a good idea that was killed by right wing gangsters. We're all much more similar than we're different and we should focus on that instead of on what Freud called the narcissism of small differences. If Munich and Berlin can be in the same country, why can't Zagreb and Belgrade?

We speak the same language (even tho some don't want to admit it - I usually use "po našu" when referring to the language, meaning "in our language", thus avoiding the nationalist names and pettiness), eat mostly the same foods, have similar mentalities etc.

I agree with you on the ethnic Albanians though - they never made sense in Yugoslavia, the state of the South Slavs. Kosovo should be part of Albania and the Serbs need to shut up about it already.