I understand the feeling and the frustration, but I would suggest a couple of things. First, I don't regard the product in the link as a book at all, but rather, a novelty gift item set up to look like a book. There's also a product I've seen for sale designed to look like a microphone. You hand several of them out to your friends, you turn on some music, you tell them to push the button and sing, and when they push the button, they get an electric shock. Same principle: it's not really a microphone, and that "sex" item isn't really a book.
Now, about getting published. The one thing that a real book has in common with a phony novelty book is that a company will invest in it if that company expects to make money from it. Like it or not, your friend needs to convince the right publisher that this book will make money--or publish it with her own money and take the gamble herself.
I don't say this to be glib or dismissive: I'm very sympathetic to her, and know what it's like, as there may well come a time when I will be trying to support myself as a writer. I think the key is, your friend needs to be talking to people who know the business, and ideally getting somebody who knows the business to read her manuscript and make suggestions. And I'm in solidarity with her: I hope she gets published. Presumably, if she knew me, she'd hope I get published too.
Final note: when you're a student taking a class, you can talk of the professor grading you either fairly or unfairly. But publishers, like producers, aren't in the business to be fair to you. They're in the business to make money. They're in it for themselves, and they don't pretend to be anything else.