Here’s 2 things to consider:

- According to the FAO, the world produces between 2 to 3 times the amount of food needed for all the world’s population

- I prepared a plot using Mathematica software but am unable to show it in this comment section. It shows the world population growth rate between 1960 and today and the corresponding world GDP growth rate. The population growth rate went down from about 0.02 to about 0.01 in those 60 years (a factor of 2) while the GDP went from about $1.34 trillion to about $84 trillion. Of course, inflation was up but the mean growth rate in GDP over those years was about 3.5% per year so real GDP is expected to have grown by about a factor of 8.

What the above says is that there is enough food worldwide to double or triple the world population without strain on increasing the food supply and that the growth rate decreases with the improvement of economic conditions. Indeed, many ‘developed’ countries would have negative population growth if it were not for emigration.

Therefore, the problem is not population growth nor the overall population size today. The problem is in the economic system that allows extreme inequality, encourages immense unneeded consumption and gives dictatorial power over the economy to a tiny few. Those keep the world in chaos and in directions that are fatal to the continued existence of most living species today.