I agree that the author is angry that she is subjected to mediocre artists, and yes, she might be one. There may be some self-hate going on here. However, I feel that her beef might be with the market that supports mediocre art. In fact, she might even be upset with the market that supports her own. She might feel like a phony.
That is why – in these modern ‘attention economy’ times – publishing houses insist on using identity politics to try to ‘move the merch’. And you read that right – intersectional feminism and mandated racial diversity are marketing and branding strategies, not politics.
I feel that there is truth to this, and unfortunately, although suck-it-up or bootstraps isn't a solution (which the author here might prefer), there is something dishonest going on on the other side too. And yes, Quillette (which ran this piece) just might have the same attention-grabbing goal by playing counterpoint.
For my part, I am left wondering why there is so much shitty art, and suspect it has something to do with our market for opinions.