I don't think it's dead, but it is unhappy. Have you been feeding it at all? I once bought an old nursery juniper that was very root bound and yellow in color. I babied it for a year, poking a few aeration holes into the packed soil and giving iron supplement to improve soil PH because our water is very alkaline. It eventually greened up. Took about two years. Then I repotted it.
Tilting the pot is also a good idea. Feeding it some very weak supplements could help. Make small gentle changes, nothing that will shock it, and give it time to get healthy. In my experience, the green cambium on a juniper is impossible to find with a scratch test. I wouldn't bother, and it might do more harm if the live vein gets damaged. That white underlayer is normal.