I can also safely say, I don't see much in terms of hateful shitposting from teenagers on Facebook.
If anything, it's mostly older men over the age of 60, or bots operated by people overseas, sharing AI slop with easily disproven racist lies.
And as I've already mentioned Twitter, any government with a shred of decency and courage would have announced its immediate blocking in the UK, the moment it became a CSAM site.