It's not just Facebook. Jews are massively over-represented at the highest levels of society in most fields.

<2% of population in America, <0.25% globally. But:

20% of Nobel prize winners

10-25% of Harvard students (depending on source and school)

33% of US supreme court (3/9)

6% of US Congress

8% of US Senate

There are equally or more extreme numbers for things like movie studio leadership, rech company leadership, newsmakers and opinion writers, actors, comedians, etc. I just don't have time to look up the figures atm.

To be clear, I'm not saying there's anything wrong or right about this; it's just an easily-verifiable physical fact.