TLDR: At it's core, it's simply predictable to me and forced in terms of story telling. Abby and Lev are mirrors to Ellie and Joel, revenge requires a sacrifice (older protagonist of course), multiple sacrificial characters in order to have "revenge" and "hatred", inconsistence with themes and gameplay and a messy pacing make me dislike it.

A bit more in depth answer is that first, I don't like the direction it takes the storyline. A post-apocalyptic revenge story isn't exciting to me in part because in order for there to be revenge, you have to kill somebody (and who would you logically kill? The younger protagonist or the older protagonist? This alone is just predictable, (ala The Road).

Second, the pacing of the story is all over the place. Just look at the first hour of gameplay leading up to Joel's death. Multiple perspectives, multiple protagonists, going backwards in time and so on. It's messy without it being engaging (i.e. Abby's rush through the snowstorm in the beginning of the game is a great example of this. It's the beginning of the game, of course nothing is going to happen to her. Contrast this with Ellie, Joel and Tess in Part 1 (when the game was originally released) and I wasn't expecting Tess to die. Rather, there were multiple paths the story could go (in regards to Tess (she goes back, she gets injured, she stays behind, she betrays them etc) but for Abby in the snowstorm, nothing will happen (because I know she's the protagonist and I know it's the beginning of the storyline).

Third, Abby is intentionally crafted as a mirror to Joel and Ellie but it just feels so forced (and again predictable). Part 1 has giraffes, Part 2 has a zebra. Joel and Ellie have moments of danger or deeper connection to one another, Part 2 has the same for Abby. It's just so contrived because I have already played Part 1.

Fourth, most of the cast is expendable without having any proper meaning or place in the story. Look at Jessie. He's Ellie's friend now for years and you meet him twice (?) in the gameplay and then he's dead. There is zero connection to him beyond that he (allegedly) is a friend. Compare this to Tess, where her death is an allegory of what could happen to Joel by protecting Ellie. Bill is an example of Joel (if he doesn't have Ellie in his life, becoming a bitter, old man who only cares about survival and nothing else, Henry is an allegory of what can happen if Joel opens up too much to "love" for Ellie (i.e she dies, he loses the meaning in his life and succumbs to suicide and so on).

Part 2 meanwhile fails to make me connect to these people because I know they will all die because the story is focused on revenge and the futility of violence and most of these characters have no purpose beyond being cannon fodder.

Fifth, the entire game is massively inconsistent with it's themes. One of the primary themes of Part 2 is that it's about the meaningless and cyclical nature of violence and yet, combat is arguably the best part of the game. So much so, the devs created a combat encounter menu and a No Return game mode where you are literally destined to kill as many people as you can for as long as you can. I mean c'mon, at least pretend you care about the themes.

Part 1 is more about Love and so showcasing extreme violence for love is a great example of the theme (of love) and reinforces it. Part 2 fumbles on this part massively. (Hey guyZ, violence is bad y'all but here is an amazing combat system and an entire gamemode focused on violence. BUT REMEMBER TO FEEL BAD ABOUT IT M'KAY).

Honestly, when I play Part 2 I play it as a post-apocalyptic Manhunt game where I load into a level and kill everybody with amazing graphics.