Wiring problems of the 2017 Subaru Legacy

The check engine light has been going on in my 2017 Subaru Legacy with only 8,000 miles & still under warranty. On June 18th we left houston for south dakota with assurance from the dealership that as long as the light was not flashing the car was safe to drive. On the 2nd day of our trip the check engine light stayed on constantly & we were not unable to use our cruise control. We had the car diagnosed & repaired in rapid city, sd. At courtesy Subaru. It was diagnosed as a wiring harness. It would take 1500 hours to repair. The vehicle was torn completely apart. I have attached photos. Subaru repaired the vehicle but since then the vehicle is not the same. The usb outlet doesn't work anymore. The car liner and wiring is showing in places that it wasn't before. There are scratches on the vehicle that weren't there before and lining in the truck isn't attached. I have lost all trust in the vehicle. What happens if 1 year, or anytime in the future the vehicle's electrical system fails or worse catches fire? I contacted Subaru requesting a buy out or trade in option. They have refused only to offer a 5 year, 60,000 mile warranty. I do not want the vehicle & will sell it so I asked the dealership if running a carfax would show the wiring issue & they said yes. That information will lessen the value of the vehicle as a trade in but I will not sell this vehicle to a private party with the issues and I will not keep it knowing that something else could go awry. I only want to be treated fairly but Subaru will only say that the vehicle does not qualify under the lemon law and refuses any remedies except the extended warranty. I do have a copy of the email string with Subaru customer service if needed.