in Polish "biesiada" is a long party with a lot of food and alcohol.
What to a Russian is a casual discussion, is to a Pole a long party with food and alcohol. Makes sense.
Why are you taking the thread off topic???
Yes, back to topic... I agree with you - how can I hate myself? However, objectivity demands we apply a neutral framework here.
I would say, for most of human history - being a Slav was not fun. We were so far on the periphery, that we never experienced the Roman or Byzantine Empires in the same way the French, Germans, or Spanish did. For ages we were being kidnapped and sold into slavery by Turks, Greeks, Tatars. We acted as a meat cushion for the rest of Europe during Mongol invasion. We missed out on all the benefits of global trade, due to being locked up in the puddle people call the Baltic Sea, and being bottled up in the Black Sea. For centuries, there was almost nothing we contributed to science or art, instead being used as faceless masses of mercenaries by European despots.
However, starting in the middle of the 19th century the Age of Slavs had come. Long in the shadows - the time came to take center place. Now, I would not trade being a Slav for an Anglo in a thousand years.