... So wait, you're suggesting that they simply use a non-existent Facebook product which Facebook will, for reasons unclear, provide to their competitors for free?
Not necessarily for free, but since this problem has criminal aspect and lasting negative societal impact, i.e. hurt people hurt people, the solution should not be profit-first.
Meta does offer LLama, don't know their reasons, for free, and i only mention them as a largest platform. This not-yet-existent product should be whatever FAANG and governments effort which will save everybody a ton of money.