Original sentence: Robinson proudly defends the genre for which he is a passionate advocate.Robinson's fiction frequently delves into ecological and utopian themes.Robinson's work has led critics to label his work as "literary science fiction", however he has always rejected such labels--he simply calls it science fiction
Edited sentence: Robinson's fiction frequently delves into ecological and utopian themes with a political sophistication and point of view rarely seen elsewhere in the field.The quality of Robinson's work, especially as compared to virtually all other science fiction, has led many to label his work as "literary science fiction" and other such qualifiers, but he has always rejected such labels--he calls his work, simply, science fiction.This is not mere modesty; Robinson proudly defends the genre for which he is a passionate advocate.Yet, while disagreements over categorization can be seen as a merely semantic matter, the tendency of readers to think of his work as something more than science fiction says something about the quality of his writing and his unique literary voice