
Verity is one of her only semi decent ones to the point where some people theorize it was ghost written. Also more of the hate has to do with the fact that her son sexually harassed someone and when she came forward, Colleen blocked her. Plus some of the icky themes in her romance plots.
The rest of her books write about taboo topics in a sexual, and non-critical light. Sexualizing incest, rape, pedophilia, etc.; shock content for a naive audience of readers. People don’t read her because they like her writing, they want to be shocked. I could describe each and every plot line she’s ever written and you would be sickened.