Let's say I wanted to write a book about flying ninjas with katanas. They're meant to just be fun, hilarious stories one can read on a summer day. Sure, the ninja people might be involved in a war or have to deal with racisim in one adventure, but that's not the theme of the book. Basically, could a writer write a silly, hilarious book and still be taken seriously; or would they have to deal with hot-buttoned issues to be taken seriously? Thoughts?