Poland will never operate as a country where people govern themselves by consensus and there is something resembling a responsible opposition, anytime soon.
True enough.
this is the poison that came from the round-table negotiations
No, it's much older. It's impossible to build such divisions in such a short period of time.
today we have the post communists and the nationalist
I'd want definitions. For me, post communists are those who have moved on from communism while many nationalists seem stuck in 1988 forever. The forming division all over Eruope and the world is between globalists and localists. I'm more in the latter camp but can't get on board any train that Polish nationalists (as currently construed) are running.
the effort really resembles two angry neighbors yelling at each other over the fence
I really need to watch Sami Swoi again, possible the definitive cinematic work on Polish national character..... (if I could just get past the accents....)