I have just read Fascinating article about genre boundaries in this month’s Writers Victoria magazine, The Victorian Writer (as in, writers who live in Victoria, not those who write like Dickens necessarily!).
In ‘Crossing the Streams’, author Claire Corbett writes that ‘the genres all need each other and dividing them up is pointless … Sci-fi in particular plays well with the others’.
Corbett argues that all genres use the techniques of romance, crime, horror, etc, to keep their narratives going, and that ‘sci-fi is on the verge of swallowing pretty much all literature whole because, as Kim Stanley Robinson points out, the reality we are living in now is pretty science fictional’.
I looked up Corbett’s author page and it’s very impressive. Check it out at
https://www.clairecorbett.com/