How sympathetic are we "supposed" to find Jamie in the final season?

Jamie is clearly at his darkest in Season 5. I found myself torn as to whether or not to sympathize with him in the first half of season 5, despite everything John and Beth had put him through, and even more difficult in the second half. He's definitely pitiable, but I'm question how much I am supposed to pity him- as in how much the director intended sympathy. Was I supposed to feel bad for him for his hard life, or was I supposed to be angry at him for being easily seduced against his adoptive family? Was I supposed to feel like the Duttons placed him in a position to be easily swayed against them? Was I supposed to feel bad for the Duttons for being betrayed, or was I was supposed to find that they were getting their just desserts for their treatment of Jamie and indeed just about everyone else?

It's clear that Jamie is meant to be surprised that John was killed- but am I supposed to have no sympathy at all for the depths he sunk to? Am I supposed to think he's an idiot for not expecting it given what he talked to Sarah Atwood about? Or am I supposed to think that he, even to Sarah, isn't really willing to admit personal fault for what he said? Or am I supposed to think that he, like with his father in S4, is simply in an unfortunately adjacent position?