To be clear, I'm talking about people who bring this sort of stuff up unbidden or try to turn every conversation/thread into a TLJ hate thread. Complain all you want about TLJ in TLJ threads & Star Wars threads. And yes, if I was a better person, I wouldn't judge others for something relatively petty like this.
But seriously, it's not healthy to be obsessed about hating a piece of media that came out nearly 2 years ago. Let it go.
I would never bring it up out of context. If I met someone who worked on something I dislike, I am not going to chide them for it. Those actions are dangerously impulsive, counterproductive and rude.
As for being obsessed with hating something, I sometimes understand the sentiment. Star Wars is a cultural touchstone, so it is treated with more intimacy and adoration than your average blockbuster. Lucasfilm has also continually invalidated the original trilogy with artistic alterations and retcons, which some fans respond to like they are being abused.
Honestly, I used to feel that way myself.
I waited in line for 5 hours to see TFA, thought it was mediocre. Saw TLJ a day after opening and absolutely despised it. Now I am struggling internally over whether I should bother with Rise of Skywalker. Plus, being knee-deep in all of the fervent online discussion since the Disney acquisition has even cooled my feelings on the original trilogy. The entire affair is emotional clusterfuck for nerds with any level of personal investment in the brand, which even I still get bitter about.
Yet I have never held it personally against the folks involved in production. The fact that Daisy gets hecklers in private and public sickens me, since most of it is poorly disguised misogyny. The problems with Star Wars and most modern Hollywood productions has nothing to do with individual people, but how the ecosystem has evolved to stifle creativity.
Feel free to hate something, but don't try to compartmentalize a complex problem by wrongly assigning blame to lone variables.