If you don't, you will have to wait for the replacement like I'm doing right now. This is a painted part and after it arrives in parts it will go to the body shop for paint.
I had a 2007 Escalade and I'm all to familiar with the door handle weakness GM put in place to keep service working. My 8 year old son went through 4 door handles on both passenger side doors before I had him demonstrate how he opened the door.
The fix that stopped the breaking. Place your thumb on the piece that stays on the door while pulling the handle, and not jerk it open.