Ester Boserup has some intresting ideas!Hallo my Malthusian friend
As a person who subscribes to the perspective of Ester Boserup, I would argue that decreasing population is indeed a very bad thing.
https://en.wikipedia.org/wiki/Ester_Boserup#Scholarly_contributions
This graph shows how the rate of food supply may vary but never reaches its carrying capacity, because every time it gets near, there is an invention or development that causes the food supply to increase.