so far it seems that education and access to birth control does a pretty good job of population control. Studies show that the more educated a society is as a whole the less children they tend to have.
Is that a good thing?
in poor countries where their populations are expected to at least double within the next 50 years and people struggle with basic needs already, yes
Agreed. But what about in industrialized societies where people can support themselves? These people will get old someday and if they choose not to self replicate it will fall on the backs of the dwindling numbers of the future generation to support them.
if they are living sustainably then they are doing great; I say carry on with busines as usual. Unfortunately few societies are in this position today (I doubt any industrialized nations are). Most nations are depleting their resources faster than they can replace them.
All I can say is research Eugenics, and overpopulation propaganda. I don't know if you live in the city or not. But please, just use google maps. Look around and there is barren land everywhere.
If anything, I believe we could quadruple the world's population and be just fine, if not more. It's not a problem. If we talk "using resources" that's a different issue. People could build "earthships" (google them they are cool).