I think your observations about expected outcome are true. Unfortunately, it's inconvenient in light of climate change because it presents a seemingly intractable problem:

- humans should eat (minimally processed) animal products - production of animal products must be minimized to fight catastrophic climate change

From where I sit, it seems like more and more educated, well-meaning people are starting to lean into a plant-based craze on poorly founded information that seems well founded because the educated classes generally agree it is correct.