The only solution seems to be to use high grit sand paper, grind down the surface until it is even, and then try to restore the ruined plastic surface. I am now looking for a solution to restore the finish to my scuffed/sanded plastic trim before I give up and bring it to a professional body work shop to restore it.
https://www.amazon.com/CERAKOTE-Ceramic-Trim-Coat-Kit/dp/B07SHJVK4G