[mseebach]

If you "predict" that it might not make a bestseller list, it's not a particular leap to predict that it wouldn't make it past a publisher, either?

I am making no attempt to quantify this, I simply have no data, but it seems the argument is that today it is relatively more fashionable to write a book about black women doing something that is traditionally thought of as something white men would do, regardless of the "classic" qualities of the work. If it is the case (and I have no data to argue either way) that such a fashion means that a mediocre book about black women doing something (not saying the particular book is good or bad, I don't know it) gets published instead of a really good book about white men doing something, that could certainly be considered "diminishing the literature and cultural products of the West".

But there has always been literature pandering to political fashions, and fashionable literature has always enjoyed an edge over unfashionable literature. Some of it is good and has stood the test of time, and some (most, probably, this is a power law domain) of it pretty bad, and totally forgotten. It's easy to look at the literature that survived from 20 years ago and compare with whatever flash-in-a-pan is being hawked by publishers right this minute and see all kinds of diminished products.