I caught the same thing. Clicking on the link gives this text:

> 79% of all child sex trafficking in 2020 occurred on Meta’s platforms. In 2019, the National Society For The Prevention of Cruelty to Children found that Instagram was the leading platform for child grooming in the U.K. The 2020 Federal Human Trafficking Report found that 65% of child sex trafficking victims recruited on social media were recruited from Facebook, with 14% being recruited on Instagram

The study was only looking at sex trafficking victims in the UK in 2020 who were recruited on social media platforms.

So 100% of the victims in the study were recruited on social media platforms. The breakdown is basically a map of which social media platforms were popular in the UK in 2020.

It's a blatant lie to claim that this number represents all sex trafficking victims.