I think the general thrust of this gentle exchange is that Trek is fantasy more than science fiction. Like Avatar.
Meh - that's subjective. Many Trek fans want to
extrapolate science from the series and forget about the fantasy elements. But if you're referring to TOS, I agree it has more fantasy elements than say TNG or DS9
Come, now. Don't you think that Q is a fantasy element? The Traveler? What about Wesley Sue?