Not going so strong considering the pending disasters relating to water, energy, material, food, pollution, waste, and the politics + warfare that are a consequence of these things.
Also not so strong considering the enormous and accelerating gap in access to those resources. In the modern day, this isn't entirely dominated by racism. That only distracts from the real issue. While europeans understandably want to keep the lever balanced in their favour and raise the issue of overpopulation more than any other group because of this reason, there is actually a point here.
The limit is hard to determine and obviously a function of consumption and waste rather than nominal population. There is also the delayed consequence effect. It may not become immediately apparent but that's what science is for right. It's almost undeniable that 8 billion cannot consume and pollute at the average Australian/American (highest per capita) rate. Even continuing like we are now, it's jogging towards doom and extinction whether natural or through warfare. But how can anyone deny another's rig
ht to pursue a similarly wealthy existence? That part would be racism or whatever discrimination fits. Simply said there is not enough resources and not enough ability to cope with the level of pollution and waste created by a similar approach to development and life for the developing world UNTIL technology evolves to a stage where it is possible to engineer away those problems.
I don't think you need to be as wasteful as the average American/Australian to live comfortably, or even a life of luxury.
Humans need a number of things to survive; food, water shelter. Then there are things which aren't as essential but still important; electricity, education, leisure and so on.
Just to look at food, compare the hectare yield for cereal crops between a country like New Zealand and the typical third world country. The inefficient farming is partly due to mismanagement by corrupt governments, but the developed world do play a role. Blocking technology transfer (I've witnessed this directly), protects western farmers and the agricultural sector. They'd rather sell grain to Africa then let Africans grow it more efficiently themselves. Got no money? No problem, let our companies extract some of your natural resources and we'll send it as aid. It's the modern version of the opium wars. That was my point about racism.
But even with the above dynamics there still is more than enough food available now compared to any time before. Throughout history there were many famines, in modern times it is very rare. You're more likely to see malnutrition than millions of people dying of hunger because of a bad harvest.
The same can be said about all the other human needs. Modern highrises mean millions of people can live in a city that could previously only house thousands.
