edit: this issue is now resolved thanks to Cadillac Customer Care. My local dealer (who isn't the dealer I leased the vehicle from) replaced both tail lights for me.
Anyone else have this issue with their tail lights? Mine have been like this since day 1, but they are progressively bugging me more and more. I feel like Cadillac should be replacing these. It's the plastic edge, it's really rough. The plastic is only black on the outside, so the roughness shows white underneath. The drive side tail light has it too, but the passenger side one is way worse (and shown below).