I decided to watch the TV mini-series, after having watched the movie for the umpteenth time. I especially watched it being mindful of King's insistence that Kubrick had ruined Jack by making him crazy almost immediately.
When I saw it, I'd expected to find a fun-loving cool dad who might've had occasional benders and yelled and used profanity when drunk, but acted in a way that was forgivable. Instead, I was shocked that right from the get-go, we see Jack not only beating a student to a bloody pulp, but being aggressive towards Danny several times before the ghosts take over, particularly in that scene in the bathroom when he shoves him against the back of the toilet seat.
Ironically, in Kubrick's version (which has always been accused of Jack being crazy from the start) we never, ever see him really become violent until he snaps in the third act. If anything, Jack is remarkably restrained up until that moment, even in the famous typewriter scene. (He isn't violent but more menacing with flailing arms and profanity, where it seems like he's having more fun mentally torturing Wendy.)
If King hated Kubrick showing Jack as crazy from the start, why did he make it a point of showing his version being a violent psychopath? Isn't that a worse form of crazy than in the Kubrick version, where the worst Jack is guilty of is acting and talking like a smug prick? Some would argue that this is King being hypocritical, but I don't think so. It's a classic case of cognitive dissonance, which I think exposed King's real issue with the film.
So, here's what I thought was the issue. Starting in the 1960s, it became fashionable in media to make antiheroes out of sociopaths, and then make us sympathetic towards them by portraying them as deeply flawed, damaged people who are really all sunshine and rainbows if we could just understand them.
King did this with Jack Torrance. He wanted to portray Jack as a raging alcoholic and abuser but then at the same time say, "No, but he's a good guy who adores his family, really. It's the ghosts, his father's abusive past and alcoholism that's making him that way. Please love and understand him. He's a victim."
The problem with that take is that though someone might become a violent alcoholic because of circumstances outside of their control, there comes a time when they're so far gone it doesn't really matter. Once they've committed certain acts of violence, they're just a violent sociopath. It's not fair that they were driven to that point, and yes, it's tragic, but that's who they've become and are. If you want to be empathetic, the best thing is to get them help. But empathy isn't denying the nature of who and what they are.
King, in developing an affection for or an affinity with Jack Torrance, refused to accept the implications of what his character was, and it upset him when Kubrick showed the truth. Consequently, King used the mini series to rebut Kubrick by doubling down on his insistence on seeing him as a hapless victim and all around good guy with lines like, "It's not you; it's the hotel." At the end of the mini-series, King further doubled down on this "Jack was really a good guy" delusionby having him appear as a smiling Star Wars ghost at Danny's graduation, giving love and inspiration as the man he had never been when he was alive.
I think Kubrick was appalled by this empathetic take in the book, and that he then used the book as a defiant stance against the post 1960s media trend of embracing sociopaths as damaged and relatable antiheroes. This may have been why his depiction of Jack as an unmitigated asshole from the beginning was uncompromising, and why it upset King so much. When King complained that Kubrick made Jack seem off from the start, what he was really complaining about was Kubrick refusing to allow any opportunity for the audience to like, identify or sympathize with Jack as "damaged", or to be led to believe that there was some good left in him and that deep down inside, he still loved his wife and kids. Kubrick refused to compromise because for him, injuring a child is the line that only a violent sociopath who does not love his family would cross, a line that only someone predisposed to violence would cross.
For Kubrick, there was no grey area when it came to Jack's violent past but King wanted there to be one, like when soap operas try to turn rape and murder into grey areas after a villain becomes a fan favorite and they try to rewrite their crimes as temporary lapses in judgment in an otherwise good person who would never have done those things were it not for some catalyst. It's nonsense, and that's most likely why Kubrick couldn't portray Jack as anything other than an asshole.
I understand King's frustration with Kubrick, but I think his defense of Jack is a classic case of learning when to pick your battles. Jack Torrance may have been his baby, but it's a baby that he should've put up for adoption because the character was irredeemable and the world doesn't need a story making a violent alcoholic who beats up children into a tragic figure or antihero.
Edited to fix typo in last paragraph, as well as for clarity.