Spoiler Warning:
1. They kill John Connor in the first 5 minutes, effectively invalidating and shitting all over the first two films by killing a legacy character for no reason.
2. A 5' tall Mexican chick is the savior of mankind, which is ridiculous and not remotely believable.
3. 15-20 minutes is spent on 2019 based political topics related to the border and incarceration of illegals, which is not necessary for the story arc.
4. Sarah Connor was a strong female character in the first two films, but her character wasn't pushed as some sort of girl power SJW feminist agenda. In Dark Fate, they are de-feminizing females and making them more masculine, as if that leads to female empowerment. It doesn't. And this type of masculinization is not attractive to men either.
5. Arnold is a T-800 named Carl, who sells f*cking drapes.
6. T2 was a great film and was ground breaking with advanced CGI meshed with live action. This film brings nothing new or ground breaking and simply rehashes old plot points done in the first two films, but does it far less well.
No sh*t this movie is bombing!