My hatred of Skylar had nothing to do with the characters moral authority. Whether she was a good person, a victim, right or wrong - I don't give a fuck. I care about the quality of the writing, the performance and the narrative. Anna Gunn is excellent, what Gilligan and co. gave her was not.
As time passed, it became crystal clear that the drug empire half of the show was infinitely more interesting than the family side. Her presence on screen meant the show was fundamentally less enjoyable. That was enough reason to dislike the character or criticize the show, but then we got to Season 5 and truly dumb shit happened with that character.
Skylar having the most cartoonish, episode killing breakdowns and then ordering Walt to kill Jesse two episodes later. Dull fucking scenes where Marie is wondering why, oh why, is my sister such a spaz! So difficult to stomach that crap opposite some of the amazing stuff with Walt, Jesse, Mike, Lydia, etc on the other side of the show. Overall, the point to their existence was to give Walt something to lose, or work to NOT lose. They were the rationalization for all of his shit. I didn't see a big reason for them to be as present as they were.
It would have been a better show if their roles were marginalized as the show progressed.