I feel like every time I watch Ben 10 and Avatar: The Last Airbender/The Legend of Korra, there are always plot elements that parallel each other.
For example, the Rooters are now the main villains and are a renegade splinter faction of the Plumbers. Recently, the Legend of Korra's arc had the red lotus as the main villains, not to mention that they are a splinter faction of the plumbers. Don't you think the Red Lotus and the Rooters are kinda similar in terms of role and whatnot?