Legend of Korra takes the masterpiece that is Avatar The Last Airbender, and takes a big stinking shit on it. As it goes on, it feels like there is a disdain by the show runners for what came before. If they had made just the first season, I would rate it as a mid and uninspired show. Season 2 of Korra does so much damage to the universe, and as the show goes on it only gets worse.

Any Avatar property which relies on Korra being cannon is automatically tainted. This is the pinnacle of ruining a franchise forever.