What suggestion could you offer that would bring themed entertainment into the world of high art( I would imagine the original Epcot Center came the closest to this status)? Could you ever see a theme park that did not pander to children and was designed for a more progressive/adult audience? Because I think that is the crux of the matter and the mindset of many people. Theme parks are for children and it's fantastical. Which is also a big issue with taking any type of speculative fiction seriously.