It's fine not to like things. People love things which others hate and vice versa.
I'm a massive God of War fan and the PS4 game was actually my first in the franchise I had finished. Its story is one of the best in games for me and I adore the gameplay, world, characters...etc BUT I understand that it is not everyone's cup of tea. I don't like Sports games like Fifa or Driving games like Forza because I play games for story first, gameplay second and graphics third. For me games like The Last of Us are the pinnacle of games for me. I know this isn't the case for the majority of people though and I have bounced off games with good stories because they just didn't hold my interest in other places but for me God of War on PS4 did everything I wanted, perfectly. But one persons perfection is another persons dog shit.
I'm also a big fan of games like Halo, Destiny, Gears of War...etc where story takes a backseat to most of their players but I love diving into those worlds lore and discovering more than the usual player would see or know. God of War has a lot of this for me and made me go back and play all the other games in the serious (I had played them previously but never finished) and then replaying God of War on PS4 after playing the PS2/PS3/PSP games really made me feel even more invested than I already was.
A lot of your other complaints OP are just things I didn't mind or didn't bother me - some I even enjoyed. Like I said, we're all different people and we can dislike somethings others like a lot. I'm not a huge fan of Hades because I found it fairly easy and unremarkable compared to Bastion, Transistor and Pyre - all games from the same developers I preferred. But I would never put down a Hades fan or say that the game they love isn't deserving of it just because I found it too easy and samey.
I'd recommend just dropping the game, at this point you've put a good amount of time in and you don't like it - which is fine. Call it quits and move on. If you had as many issues with a relationship as you do God of War, you would end that relationship because it wouldn't be working - so yeah, uninstall God of War and move on :) You'll be better for it.