I don't expect SF to be theology but if it presents new against tradition/nature then its already on the right track. Art is not this exact thing.
I disagree, the new crop of sf writers may not be winning the pc nebulas but there's a few obscure names besides Ringo and Stephenson that given time will come up.
There is a rather open civil war in SF-dom, with the Science Fiction Writers Association and the structures awarding the Hugos and the Nebulas on one side, warring on Western culture, racism, sexism, inperialism, and (if spotted) Judeo-Christian religion, and the group referred to as Baen writers, after that publishing House (Weber, Ringo, Kratman, Correia), and the sort of folk who get the Prometheus awards (these are all mainly military/libertarian in orientation) on the other, plus folk like Sarah Hoyt and John Wright. Much hostile chatter on some sites I have stumbled upon. It's the Evil league of Evil, as Larry Correia named his side, versus the PC/intersectionalists on the other. Google SF intersectionalist and read the blogs. Legacy giants like Poul Anderson and (naturally) Heinlein) are savaged by the gender bending crowd. Reminds me of the Futurist teapost tempest of the 30s-40s.
One may conjecture which group I buy and read.