Population control or better use of space?

[elucidate]

I spent my twenties convinced that due to the population issues of the world, it would be unwise to bring any more kids here.

I concede that it may have been mistaken thinking, based on wrong information, and also coupled with the fact that I find crowds really hard to cope with and when I am in a crowd and so many kids and mothers pushing prams pass me by, I get a sense of Agoraphobia, and feel like there are already too many kids here.

I was discussing this issue of population with someone today, and wanted to get other peoples opinions on what they think is the real issue here.

Are we over-populated, or are we merely not utilizing the space we have to the best of our abilities and over consuming so that our resources are dwindling and therefore unable to cope with the number of people we do have here?

I think it's definitely true that we over-consume and we would do well to cut back on that if we want to survive...but as for the population issue, I'm still not totally convinced that it's not a matter of there simply being too many people on this planet!

What are your thoughts?