Sorry, I never open/check/see links
It's a video from a Jewish movie on YouTube which is owned and operated by these same people whom you admire so dearly! If you can't trust the Jews who can you trust? :)
Tell us what the video is about.
Exactly what I said it was, Jews singing a song in Polish like natives! Literally!
They even make a reference to you personally and say dupa at the very end! It's hilarious! :)