There are quite a few things wrong with this novel, which I think completely justify a one-star rating (it would be no stars if such a thing was possible). In order to keep this as concise as possible, I will list the problems.
-The cover. A white girl in black-face. Does this even really need to be discussed? Why do people not see the problem with this?
-The awful syntax and grammar.
-Pearls (white people). Coals (black people). Taking into account the fact that coal is ACTUALLY a slur used to insult POC.
"Before she knew it, she blurted out an incendiary racial slur. "Get your hands off me, you damn Coal!""
-Black people portrayed as savage and horrible, with no saving graces in their characters whatsoever. Black male described as a 'beast' and actually literally turns into one. I don't think I need to elaborate on how this is disgusting. Similes and metaphors relating to animals used at least twice in connection to black males.
-Uninteresting, slightly non-existent plot.
-Completely flat unlikable characters (Particularly Eden who is a whiny brat with a superior attitude despite being 'inferior')
While the author might not necessarily be a racist, she has certainly succeeded in creating a racist book which is insulting and problematic. And this isn't even taking into account the promotional videos (which come with their own set of problems).
It is clear that no self-respecting publishing house would have touched this novel with a barge-pole, so it makes complete sense that it is self-published.
This book should come with a trigger warning for racism.
*If people are interested in books with a similar theme executed in an infinitely superior manner, Malorie Blackman's Noughts and Crosses series is perfection. It handles race in a sensitive manner, without relying on ridiculous tropes.