Roxanne: To protect declining elephant herds from poachers seeking to obtain ivory, people concerned about such endangered species should buy no new ivory.
Roxanne's Claims
1. People concerned about protecting endangered elephants from poachers should buy no new ivory.
2. The new and old ivory markets are entirely independent, so purchasing antique ivory is fine (doesn't provide poachers with incentive to obtain more new ivory)
3. If the ivory you're buying isn't at least 75 years old, you can't buy it in good conscience.
Salvador's Response (if any)
1. I disagree. People concerned about protecting endangered elephants from poachers should buy no ivory at all.
2. I disagree. They're not entirely independent. If the supply of antique ivory were able to adequately meet the demand for ivory, then the demand for new ivory would go down. There are people who are hoping to buy antique ivory but willing to buy new ivory if they can't find antique ivory.
3. No comment.
Goal
Let's look for an answer talking about whether or not people worried about endangered elephants are cool as along as they're buying antique ivory, or whether they should buy no ivory at all.
Or, look for an answer talking about whether the new and old ivory markets are entirely independent.