I ran across this old piece by Michael Moorcock, Starship Stormtroopers. I liked this bit:
I must admit I’m not following a properly argued critical line. I’m arguing on the assumption that my readers are at least familiar with some of the books and authors I mention. I attack these books because they are the favourite reading of so many radicals. I attack the books not for their superficial fascination with quasi-medieval social systems (a la Frank Herbert). Fiction about kings and queens is not necessarily royalist fiction any more than fiction about anarchists is likely to be libertarian fiction. As a writer I have produced a good many fantastic romances in which kings and queens, lords and ladies, figure largely — yet I am an avowed anti-monarchist. Catch 22 never seemed to me to be in favour of militarism. And just because many of Heinlein’s characters are soldiers or ex-soldiers I don’t automatically assume he must therefore be in favour of war. It depends what use you make of such characters in a story and what, in the final analysis, you are saying.