Disinformation campaigns don't mean all such activity is by political shills.
[1] https://www.nbcnews.com/politics/justice-department/law-enfo...
The KKK has multiple independent sects and semi-decentralized governance, but that doesn't mean "KKK" doesn't exist -- it refers to all of them collectively.
If it would allow nesting, I'm pretty sure somebody would've already accidentally put Al-Qaeda under Ansar al-Sunna and cause a recursion error, blowing up DC.