Wow I never realized how mad cokes is all the time...
Skyler is pretty obviously supposed to be disliked, but she's also the source of like 80% of the drama in the show, so she is definitely necessary. We're not (at least I'm not) saying the character is badly designed, she's just the realistic, grounded, reasonable foil to Walt's insanity, which makes her unpleasant and unlikeable.
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_foolmo_
[NO BARKLEY NO PEACE]