How come the most jewish country in Europe, Poland, "the paradise of the jews", has always been a worthless backwater shithole? Does this simple fact refute the notion of jewish supremacy?

Jews are now telling poles that we're all jews

Help

I need some pole to explain to me his nation's modern politics to me asap. The only thing I know is that one of your presidents died in a plane crash, and that the daughter of your 80s communist dictator owns a youtube channel.
Help me, quick!