First off, not one person here is opposed to the OP. We just don't think he has provided any convincing evidence that contradicts Tesla's assertion that his problem is battery degradation.
Second, correct me if I got this wrong, but isn't the OP's oldest Tesla at the service center right now to try to recalibrate the old degraded battery so it will not report 16 miles range when it shuts down to protect the remaining battery life? In any case, battery degradation of this type can cause secondary issues, like inaccurate reporting of the remaining range which obviously wouldn't be covered under the "unlimited miles" battery warranty if the issue is a symptom of battery degradation.
This is a case of someone trying to get something they are not owed. We are not "opposed" to the person, we are only opposed to his belief that he is owed a new battery because he has provided no evidence of that.