Over the last few years I've been reading quite a lot of SciFi, both contemporary & 'classic'/older books.
One of things that is really striking is that while authors have always been able to imagine new technologies & universes, and often even seen new forms of future society, few (until recently, and then mostly female writes) have been able to imagine any sort of revolution in sexual politics or gender relations....
From which you can draw your own conclusions.
@ChrisMayLA6 We are gradually emerging from a binary world (which has existed for thousands of generations.) This change will be revolutionary.
Whilst I am acutely conscious of the climate crisis and the sixth mass extinction, I think the paradigm shift coming in "sexual politics (and) gender relations" is the most significant issue facing humanity.
I would welcome your list of writers who have been able to imagine this.
I'd start with Becky Chambers....