Your critical analysis skills won't improve until you understand that characters are tools in a story and applying real life morality to them does not lead to good writing. Does a villain 'deserve' redemption? Who cares? I want to know if it would support the story's message. Does a tragic character 'deserve' better? That doesn't matter. Did their death serve as a satisfying end to their arc? Did it impact the greater narrative in a positive way?

Someone called me a capitalist for this take.