I'm also quite puzzled about your conclusion of buying palm oil while also stating many of the negative effects.
What you are saying is that there is no point of trying to improve anything because it will have little effect. With that attitude surely no changes will be made.
You are right that it's more efficient to produce palm oil compared to alternatives. But that's not really a good argument when the production is done the way it is in these corrupt countries.
The implication could be that the energy spent convincing people to not eat Nutella might be better spent on other strategies for solving the problem.
I personally have no idea what the best approach is -- I just wanted to point out another plausible interpretation of the comment.
As for Catsmull, he may be coming from a problematic context but that doesn't mean he doesn't have valuable insight.
Not sure if that's accurate but that's what local folks told me.
I checked out the orangutans in Sumatra and you can see the palm plantations encroaching into the jungle. Locals told me they consume a lot of the river water and makes the entire area warmer. Although the area had the fortune of being a natural reserve, I still saw trucks grabbing aggregate from parts of the river that were not included. Oh and if you were in SEA around 2 years ago, the ridiculous haze was from people burning wetlands to plant more palm. https://en.wikipedia.org/wiki/Southeast_Asian_haze