And I certainly think it is important to not entertain fantasy and pure fiction.
That said, and as you know, STEM professionals are not immune to being closed-minded when it comes to new ideas. In fact, I would say that it is the rule, not the exception that scientists can be among the most hard-headed when it comes to accepting new technologies, concepts, inventions.
As to science fiction, I agree. I was a fan as a child, but most of it is just plain silly from my vantage point as an adult.
That is 180 degrees off from my experience. Scientists are busy in the lab, testing and discovering new things. We're a pretty inventive lot.