At the bottom of this heap of discussion is the reality of how many writers produce work and how many get published. Of course, there's always self-publishing but the ones that do well (in terms of getting a good number of readers) are also counted in the same breath as unicorns.
98.99% of writers who finish a novel/long version story don't get published, let alone acknowledged. This is regardless of what they write, and sometimes, even how good it is. Most give up. It's too hard, although it looked easy enough in the beginning.
Some writers get published and fall to the wayside after one book. Some go on to write many, many books and are loved and lauded by their readers, but they don't have every reader in the world, only readers who read that type of book (and sometimes, books by only that writer).
What is the point of complaining about not getting the limelight from a publishing perspective? Each writer will go through the mill, ten or fifteen years of pain and suffering and humiliation, and even that will not guarantee a publishing contract or a readership.
Write the story, write it with passion/compassion and knowledge/verifiable facts, warn readers if necessary (genre and cover should do this first, though), and use real people inside that story.
Just write the story. With real people. In a real world. Doing stuff the reader identifies with. Doing interesting stuff. Being interesting while they do it.
And let the reader decide if it's worth reading, not the critic.
Before anyone says I'm being insensitive, know this:
I had a few foster kids, a lot, in fact. Two toddlers, 30 teenagers taken from the streets. From all walks of life, one with a father who was a well-known public figure. I will tell stories that show some of their experiences, even though it wasn't my experience.
And consider how these potentially 'clean of any wrong-thinking' books will look in ten years, or even five. The people who are now pushing for the rights of everyone to be represented by only themselves will be on another road, older, wiser, better-read. The books will be long-unread, dead.
Write the story that needs to be written, even knowing it may never hit the horn of a unicorn. If it's loved by one person, it may just be that it was the one person who was meant for.
Of course, this is all my personal opinion, and I have considered putting warnings on some of my stories, but each time I consider it, the readers say not to, that there is enough censorship in the world, and that to read a story is a choice -- as long as it's made clear from the title, cover and genre placement that it belongs where it is, and isn't placed in a category that is misleading or false.