Just saw this in my feed a month after you published it... the carrying capacity of earth is quite a bit higher than 7.9 Billion humans and all the animals and insects and other life. It's what we've done to the environment that is the problem. The good news is that many developed nations are seeing steep declines in population and earth as a whole will see a peak in about 10-20 years before rapidly declining because people don't want to have as many babies when they get out of the 3rd world. The resources are not infinite but the are vast and we still haven't come close to using them all up. It's what we do with our waste that is the problem...