Starship Polaris said:
Yes and no.
Trek has moments - episodes - which are pretty science fictional. Not surprisingly, a lot of those were written by folks who'd written sf before either for TV or in other media. That said, an average episode of the series was basically action-adventure set in outer space with a little gloss of Importance from time to time.
One can always argue this, of course, because one of the constants in skiffy circles is the endless discussion of what is and isn't "science fiction" and how it's defined. I think that there are certain sf tropes - such as FTL spacecraft or computers with minds of their own - that were so well-established by the 1960s that they really didn't represent speculation so much as appropriation for use as part of the setting.
Which is why one could call much of it unoriginal or derivative sci-fi. Which does not negate it being sci-fi in the first place; just as a cliched Western is still a Western. The question of Data's sentience and humanity is a science fiction concern, if an unoriginal one, the
Voyager's Doctor also, even if that is most obviously a rehash of Data's problem.
Plus, the trappings of sci-fi also amount to sci-fi. Vapid action-adventure space opera
is science fiction. As is stories with aliens from other planets. It's not science fiction as Arthur C. Clarke defined it (by his reckoning, most of the genre would fall under 'science fantasy'), it may not be science fiction as it
should be... but it's science ficton as it
is.
To quote a movie I like quoting: "The theatre, the theatre - what book of rules says the theatre exists only within some ugly buildings crowded into one square mile of New York City? Or London, Paris, or Vienna? Listen, junior. And learn. Want to know what the theatre is? A flea circus. Also opera. Also rodeos, carnivals, ballets, Indian tribal dances, Punch and Judy, a one-man band - all theatre. Wherever there's magic and make-believe and an audience - there's theatre. Donald Duck, Ibsen, and the Lone Ranger. Sarah Bernhardt and Poodles Hanneford, Lunt and Fontanne, Betty Grable, Rex the Wild Horse, Eleanora Duse - they're all theatre. You don't understand them, you don't like them all - why should you? The theatre's for everybody - you included, but not exclusively - so don't approve or disapprove. It may not be your theatre, but it's theatre for somebody, somewhere..."
The same, in essence, applies to science fiction. Sure, it's Philip K. Dick and Stalinslaw Lem, but it's also
Plan 9 from Outer Space and
Star Wars.