Why are manga and anime more diverse than American animation and comics?

[Stuart23]

For comics, I think western comics are as diverse as manga,you just need to see outside the box of Marvel/DC.

For animations, the thing is that those different types of anime reached the mainstream audience and have its own dedicated fanbase while western animation is still having a hard time leaving the usual market. Big animation channels like Disney, Cartoon Network and Nick invest a lot on their usual comedy shows because that is were the easy money are and it is where they know there is an audience. You can find western animation taking different genres but those usually fall into the "niche audience" kind of thing and hardly reach the mainstream.