The mom thing didn't change, we find out his mom was actually abusive the whole time, but Kaneki repressed those memories and made new ones that made It seem like his mom loved him this whole time, even though she was actually very abusive.
Also, Haise and Kaneki are the same person. Kaneki was tortured while he was in the CCG, and developed a new personality "Haise" that Arima helped to make. They are the same person, it's just that Kaneki essentially has multiple personality disorder.
No you dumb in the fight between kaneki and arima in the owl extermination arc arime stabbed kaneki in the head and he almost died. Arima put kaneki in jail then in jail kaneki lost his memories. Arima then made him haise sasaki and trained him. I read the manga
So Haise is the result of essentially manipulation by the ccg, specifically his mentor. So the black hair represents Kanaki loosing the repression of his childhood memories and being pessimistic kanaki, or the a suicidal Kanaki.
You should read manga bro, kaneki's backstory is in the manga. He was abused by his mother and he repressed his memory of it prior to being a ghoul, thats why he is the way he is.
Basically this whole ass arc is a “Black reaper kaneki” Because he was just like back when first turned a ghoul. But this time using his powers like when he accepted that he was a ghoul in the 1st season. and ofc he will get stringer when his hair turns white again.
1:38 I am not sure about the anime, but the manga has always hinted that Kaneki's mother abused him during his childhood. It was not something that was added on specifically at this point.
Ok so ima just let y’all know 80% of season 2 was not canon👎🏽 I was sad when I found that out that’s why season 3 was so confusing and all over the place all these new people are from the manga it’s just the show was terrible in explaining it cuz they thought everyone read the manga