This is an example of why every responsible parent should forbid their children from uploading any pictures of themselves online, or better yet, bar them from social media entirely. This might be a hot take here, but parents should install monitoring software on all of their children's devices and be open about it. Not doing so is negligent.
Your kids could end up on the pedo registry if they take a picture of themselves and someone changes it into porn.
We could deal with this easily by banning the distribution of porn entirely.
There's a huge difference between teaching sex acts and helping kids avoid predators.
The lack of action against pedophiles is just going to fuel Qanon conspiracy theories and lead to vigilantism.