Did Annie have a bomb installed in his body that would explode in the prequels??? I totally don't remember that
As Fabio says, though, each of the characters you mention went through severe trauma. Ripley has all of her friends die, then gets removed from all she knows, finds out her daughter's dead, doesn't have any prospects of a decent career, and then finds out an evil corporation is doing evil **** that will cause lots more death. McClane gets beat down by life, was separated from his wife, an alcoholic at one point, seems estranged from his child, Riggs and Rambo went through the most intense kinds of trauma you can imagine.
Kylo, he's a kid, and he was rebelling against his parents and teacher apparently. While it's true that for a 15-16 year old, girlfriends/boyfriends and disputes with mommy and daddy can seem like they are all that matters in this world, I think most adults get through that ****, and mature to the point where they can look back and shake their heads. I like Kylo in part because he's acting like a typical teenager. But it's not "cool" to be a hormonal teenager, is it? Was it ever? I don't think it was viewed that way in the '80s, and if you think it is, then we'll just agree to disagree, but. . .
Of course, we haven't heard the whole story yet, and maybe there is more to it than simply saying he is rebelling against authority and expectations in the way any given 16 year old would. Maybe. . .he was sexually abused by Luke?

The way Jedi are described in the prequels, are they all that far removed from some of the priests who have done this sort of thing? Maybe Luke followed the "no women" rule a little too closely?
Won't happen in 1,000 years, I know, but I think that would certainly make his behaviors much more justifiable, and could make me really get behind this guy. But if the only explanations we get are what we got, then c'mon. As Fabio says, the development of Vader in the prequels, as awkward and badly written as they were, certainly can explain how he could grow into this damaged, demented sociopath. Not seeing that from Kylo.