They aren’t, they are pointing out self-organizing groups like this can be made into something good as well as something bad. That’s kind of the whole point of government and regulations, to try to prevent that. Obviously that has failed in most cases, but it doesn’t mean the goal itself is pointless.

https://www.the-independent.com/news/world/americas/crime/vice-president-bikers-against-child-abuse-arrested-b2730815.html

Here’s a more recent example. These groups can often end up exploiting the things they claim to protect. That’s just humans being human.