Had the same thing happen to me, and it doesn't take much to do. I have a 16 superwhite also and a guy loading a box leaned it on the bumper and slid it into the back. My heart stopped!
Several chips and paint removed from him doing this. I had a devil look and screamed "What the F***, I told you I got it" gotta love home depot helpers!
Anyway the good thing about the white is that using the Dr. Chip thing works well. I am by no means an artist or painter but my sloppy repair looks good from a foot away.
this is the only vehilce I have had this happen to. I think it has something to do with the white paint, I have read that there is no clear coat and it is mixed into the paint and creates a bad adhesion to the pastic. FWIW
The Tacoma had a big issue with the white and it was the primer that was causing the paint to come off so easy. Toyota looked at mine and said, We'll repaint it on your dime...
I have cleaned bugs off the front bumper after long road trips (highway) and paint has come off with the bugs! Litterally the force of the bug hitting my bumper at 70-80 mph has caused the paint to chip off. Down the line I will probably either lineX it or go aftermarket
Sorry for the long rant, but I'm in your boat too.