I’m not really sure if I agree with this argument against Facebook. It’s true that Facebook had a part in this, but the same can be said for any kind of media for any given historical conflict.

Here’s an article describing the effect radio had on the rise of Hitler: https://daily.jstor.org/an-affordable-radio-brought-nazi-pro...

A few years before these genocides, western media were praising Facebook for its role in the uprisings in the Middle East. It was seen as a force for good, allowing people to self organise against dictatorial regimes.

Hell, back in the day the printing press pretty much brought down all of the power structures at the time, because suddenly people had more free access to information.