The most watched programme on the BBC after the news is probably 'Doctor Who.' What has happened is that science fiction has been subsumed into modern literature. There are grandparents out there who speak Klingon who are quite capable of holding down a job. No one would think twice now about a parallel universe.
Everybody has a right to like or dislike anything or anyone. From a flower to a flavor to a book or a composition but it is very sad that in our country we actually fight over such things in an unseemly manner.