If an injured climber insists on climbing down, what should the rescuer do?

The best course of action in this situation is to insist on rigging the pole top rescue rope as a backup. When dealing with an injured climber, their judgment may be impaired due to their condition, and allowing them to proceed without safety measures could lead to further injury or complications. Rigging a rescue rope provides an additional layer of safety, ensuring that the climber is secured in the event they are unable to safely descend on their own. This action prioritizes the climber's safety while also providing a controlled means for them to descend, which can be crucial in an emergency scenario.

In scenarios involving potential injuries, relying solely on the climber’s desire to descend without precautions could lead to dangerous outcomes. Therefore, taking proactive measures such as rigging a safety backup is essential in promoting a safe rescue process.