But seriously, things like foids weirdly imitating this group (femcels) or normies starting to use word "incel" or some of our lingo (at least on the internet) or fear mongering media unable to shut up about us are first signs of this. As I said, mark my words.
I doubt normiecels will ever admit the lack of sex/rarity of sex/low quality sex that they have.
Anytime you read a post on reddit talking about "hurrr im not even good looking and I get laid, muh personality" - its probably some guy whose fucking some 350lbs hambeast 0.1/10 who cheats on him and will divorce rape him if they ever get married