No I said they very rarely happen, in crisis or chaos situations. You need a pretty stable society, before people can organize like that. They need legal protection, privacy, and can't be spending all their time struggling to survive.
It's hard to even find an example where rape gangs did happen, and there's a lot of misinformation. Remember not long ago Elon Himself was promoting the claim that evil rape gangs formed from Pakistani Muslim men were raping 250,000 innocent white British girls. (In Britain. With British police protection.)