I'm sorry, but should we go back to the center of this discussion? It is impossible to argue that social class does not exist in Polish society, as it does exist in absolutely every single society in existence. Of course, social classes change throughout time with general changes in power dynamics between groups within a given social space. It is, therefore, the question of how social scientists divide the classes or what class behavior/practices they recognize in a given geographical or economic space.
In the case of Poland, it is incredibly outdated to talk about Szlachta, as the power of this particular class is gone. Representatives could through time aspire to change the sources of power and therefore their class, through for example investing in cultural capital and becoming cultural elites (like high academics) or investing their economic capital and becoming business elites (like developers or brokers). Or do non of these things and become any other social class (precariat, workers etc). So both of these are true at the same time- social classes exist and old social classes are dead.
With regard to my background, all that is left for me now is my surname and traditions, and coat of arms.
It is genuinely hard to argue with someone who believes social stratification is a positive thing. This is a very basic difference in seeing the world and I am sorry this still needs to be discussed. I am sorry you feel like you lost imaginary power and virtue. Respect and being a good person do not come through blood and this we were able to prove already in the 1950s, and thanks god, because if it did? It would mean you would have to carry all of the abuse and exploitation your ancestors did toward people who worked for them. And that would mean you would never be able to be a virtuous person. But it doesn't, and I'm sure you are.