"Riddle's mother gets demonized wah wah wah". Riddle in book 7 says that she yelled at him so hard he wished to never wake up?? She traumatized Trey and his whole family?? It's hinted that she physically punished her son in Jade's eternity float vignette?? But sure, it's about "hating women". If she was a man I'd hate her all the same.
thanks for providing an example of people twisting the story to add an additional, physically abusive undertone to it.
firstly, i acknowledge in the post that she HAS harmed both riddle and trey through her verbal abuse; it's not something i am in any way denying (there are also other instances suggesting that her actions had traumatic effect: trey is visibly shaken in riddle's dream, for instance). i'm not bringing up reasonable dislike (something i feel; her actions are despicable) either, i'm bringing up demonisation, complete reduction of her to a couple of scenes which results in black-and-white statements.
secondly, having a screaming fit which negatively impacts others is actually a thing which happens in the main story too. can you guess who does it? pre-overblot riddle goes off at people in a disproportionate manner, mirroring his mother. which is intentional (obviously). us not seeing the pov of students who are almost killed by riddle's emotional outburts (a pattern for all overblots) doesn't mean that his actions had no impact — we are at the very least shown that the background characters are distressed by his pre-overblot behaviour (wanting to switch dorms, afraid to say a word out of line, "yes, housewarden", begging him). even though his actions are wrong, we (the audience) don't despise him. not because he didn't do anything wrong but because he is a) someone we care about due to knowing how much he is struggling and b) a character who admits that they were wrong and consequently changes. neither of those two things apply to his mum, hence why it's easier to dehumanise her. it doesn't mean that those similarities aren't there though. initially he IS like his mother, but he learns to be better than her.
lastly, i think that you are disingenuous in suggesting that "she physically punished her son" is a solid fact and not. you know. your perception of ambiguous info. i don't speak japanese and jade's vignette is yet to get official translation; going off the unofficial translations it seems that you are referring to riddle's belief that "a severe punishment" is befitting jade's behaviour ("it's only reasonable that you would receive a severe punishment"). after that jade's mother comments that "oh my, riddle-san's house has strict rules, doesn't it?". there is nothing here to suggest emotional weight (no change in music, for instance) comparative to what a revelation of riddle's mother's physical abuse would reasonably elicit. the whole scene has a comedic tone (jade's mum hugging him intensely because she is happy to see him return and a bit annoyed by him worrying her as well as involving outsiders, the school) with a hint of sadness at riddle expecting there to be punishment instead of more natural motherly exasperation (something we also see in tangled event; riddle's mum not behaving like a "normal" loving mother is a bit of a theme).
i am willing to change my mind if presented with solid evidence. so far i do not see reading this scene to mean an admission of physical abuse as reasonable.
(also. in good faith. do you genuinely think that they would reveal something like that in a vignette dedicated to another character? in an event which isn't focused on riddle? they had ample opportunity to hint at her hitting riddle yet the only "evidence" is this? come on.)
tldr: it's fine to hate any character for any reason (i am not the police) and it's understandable to hate a character who is as openly antagonistic as riddle's mother is. i'm not against people's feelings or their vocal distaste for her actions. i am against inventing new offences by presuming the worst of the character and treating your feelings as if they are facts.
