In the end all storytelling is political. There is no ‘entertainment only’ version of storytelling because for someone in the audience the axioms others take for granted are painful, disempowering and even oppressive. Only those who are privileged to the point of being blind to their own world view can see stories as being (a)political. So science fiction is political, and because of its natural bent to look at the ‘what ifs’ of the world, those biases are magnified. If it extrapolates only what the majority or a particular interest group are evangelising, fine — but it should expect to get scoured in the court of public opinion.
Which is why writers matter to the culture, but also critics. Not every one of the former always agrees with the necessity of the latter, of course… and pity* those of us who wear both hats, if only for our tendency to tie ourselves in knots in either format.
[ * — No actual pity required. Please send help. ]