Way of Life Literature has a rant on science fiction that is really quite odd and rather selective. It appears that science fiction is the product of evolutionary thinking and that most of its key authors were atheists, and of course, evolutionists.
I am both a Christian and a fan of science fiction, having even written just a bit of amateur science fiction on this very blog. I must also plead guilty to evolutionary thinking, because I think the theory of evolution is good science and provides the best scientific explanation for the diversification of life on earth that we have. I would also note, however, that evolutionary thinking has been applied in many places where it doesn’t work well, such as in tracing evolution of thought, which has often resulted in very poorly supported dating for Biblical materials.
There is literature that is of value in many genres, I believe, in science fiction just as in others. As with any literature, if you are going to build your life on it, you may well be led astray. Authors do–and indeed should–have moral and theological viewpoints which are often reflected in their writing.
The answer is not staying away (though there are some items in literature I would recommend staying away from), but reading with your mind turned on.