I am pointing out that we are reaching or have already reached the limits of what population size our resources can sustain. This is also called carrying capacity. The Colorado River is oversubscribed, the climate is changing to a hotter and drier one than we had decades ago and yet we continue to add more and more people who in turn consume more and more resources. At some point, something has to give. This is not a political issue, this is a math/science issue and the numbers do not lie. Liberals deny the effects of overpopulation like how the conservatives deny climate change. Forget about partisanship and start to think for yourself.