In all biologic populations, healthiness can be measured by population growth. Population growth can only happen when the population itself and its sourroundings are healthy. This needs balance. Simplified, and used for market theory lessions, a group of Pikes in a closed pont of Carps will eat only as much Carps, increasing Pike population, until some Pikes die by running out of prey, but this way giving Carps the chance of increasing their population and this way....creating a balanced sytem.
Obviously, and all modern economic philosophers explained that, there is no pont in which that happens, except the ifs are taken in account. If the Pikes don't stop by themselfes to breed and eat more and more of all Carps, this way becoming unfit for the closed pont, they die after having also ate each other sometime past the last Carps lonesome death.
Europe as the actual most pure core of The West and center of the Dark Modernity with all its inequal enforcement of laws has a very broken population record. Real good numbers are difficult to find, especially past WW2 when politics took over information, but a quick research suggests these key stone numbers:
1900 239 millions
1939 560 millions
1960 450 millions
The main jump in the beginning of the century makes a lot of sence considiering industrialisation and its impact on what is base in all biologic populations to grow: Secure food supply and the ability to rise the breed safely. Fish don't realy rise their breed, but humans have kids around for minumim 20 years realy close and they kinda never realy leave house.
Fish just swimm away.
So, industrialisation increased aggricultural output using machines and fertilzer, industrialization provided clothing and housing, industrialisation provided books and long distance connections and therefore created a safe long term perspective of successful survival for kids.
Parents had no need to fear the destiny of their unborn.
Then war came and until today the population growth did not change back to the early years of industrialisation.
Considering the fact that there is no war, there must be a different reason for staggering slow popultaion growth, that went down again from the 60ies on, especially when watching shops full of food, cloth and information media visible for everyone.
So, what is wrong Oh Mighty Leaders?