AI does make it easier to generate content, but the type of content it lends itself towards the most is spam. Whether a Facebook where the majority of the content is neural net slurry is something that people will want to engage with once they realise what's going on is an open question I think.

Anecdotally it seems like older demographics are the prime target of the current wave of AI engagement farming on Facebook, because they just don't understand that this technology exists now and assume that all of the "photos" they're seeing are real.