"We will need writers who can still remember freedom: poets, visionaries... the realists of a larger reality." -- Fantasy/sci-fi fiction author Ursula Le Guin in her award acceptance speech.
One doesn't have to agree that any writer "should" focus on any political agenda. But writers, please keep seeing and writing about different and alternative worlds. That's what feeds humanity's ability to create instead of remain stuck. Whether capitalism is still the most promising world system, whether it's any world's automatic eventual demise, or whether it is as yet incomplete and is merely a facet that creates something grand when its other facets are attached... keep bringing us new worlds.