I learned it in elementary school music class. Along with kibbutz working songs. I think the teacher in the small town where I grew up was a closet Zionist.
Everybody knows it. Or knows a little of it. Even anti-Semites.
Here’s the movie that explains “Hava Nagila,” and has a few laughs at it along the way.
The Jewish international anthem? No. But go to a wedding and ask the band if they know it.