Agree that no one is ever untouchable for the right return.
Now, if the question is who I value the most on this team, I would start with Deni.
Deni's skill set, IMO, is the hardest to replace. I have been waiting for a really good point forward for years, and he is by far the best of any that we have tried since maybe Pippen? Point forwards allow a team to have a lot more flexibility with lineups. (ie, 2 SGs on the floor at the same time)
The next hardest to replace is probably Camara. You would think a 3 and D forward would be easy to find, but over 200 3pters made, along with taking over 100 charges on D, is hard to find. Only the 4th Blazer ever to make over 200 3s in a single season. (although Dame did it multiple times)
After that, the choice gets tougher. There are quite a few I would want to keep (DC for sure), but in the end, their skill set is a little easier to replace.