Adolescence (TV series) - Wikipedia
A 13-year-old boy is labelled an "incel", implying that a 13-year-old boy should be having sex which is repulsive in and of itself.
Most murder victims are males killed by another male. Homicide in England and Wales - Office for National Statistics
A white male growing up in the UK makes it even more unlikely. Surrounded by female teachers he would have been disproportionally punished for any verbal or physical abuse in the direction of girls. More realistic would have been a newly arrived immigrant from Afghanistan or Somalia with a totally backward attitude towards women and girls. That was never going to happen as diversity and inclusion only work one way.
It completely misrepresents the manosphere as only comprising "toxic revenge-driven incel sites". In reality, he would likely have come across sites helping him improve his social and dating skills. Not to focus on one girl at a time and how to deal with rejection. Failing that, how to live a life in the absence of female relationships. Further reading: ANTI MANOSPHERE TACTICS
It misrepresents what the manosphere actually says. Example https://www.youtube.com/watch?v=Ip1jKyq7VLo&t=1057s
It gives the impression that jilted 13-year-old boys are an "Andrew Tate video away" from committing murder. In reality, they will sulk in their bedrooms playing video games.
Murders where you can actually prove in court that the perpetrator was directly influenced by "toxic incel websites" are extremely rare. Elliot Roger (2014), Nikolas Cruz (2018), Alek Minassian (2018). The fact that Elliot Rogers's name always comes up when discussing violent revengeful incels more than a decade later shows exactly how rare it is.
The character Jamie was raised in a traditional 2 parent household. Fatherless Single Mother Home Statistics | Fix Family Courts
Any future sequel will never show the killer receiving mountains of fan mail from admiring girls while in prison. Florida school shooting: Accused killer Nikolas Cruz receives 'piles' of fan letters in jail - ABC News Ironically the very incel they ruthlessly ignored while he was on the outside.
The killer was interviewed by females. Highlighting female power over males.