If a television show is at least decent, but I don't like any of the characters, I'm less likely to watch it.
If a television show is bad, but I really like one or more of the characters, I might watch it.
If a television show kills off the only character I liked AND devotes itself to being brainless, godawful dreck, I write bitter articles about it, apparently.
There is nothing left for me in The Walking Dead. I've given it a chance in video games, in comics and on television, and in all three cases it quickly deteriorated my will to live. Not just because of the death and misery it gets off to, but because of how smugly self-assured this franchise is that it's Saying Something Important, or that it's smart and compelling drama.
Usually about five seconds before turning into a dumpster fire.