ehhh not so much too many people, as too many people trying to live in higher and higher quality. We have enough food, fresh water, and natural resources (wood, iron ore, oil) for many MORE people. But that is assuming we live like americans around 1950. Also America really doesn't suffer from overpopulation. There are some areas where fresh water is running out, and all the resources are used up, but overall america's population is about to decrease (there should be more deaths than births within a few years) and the average american woman is having 1.6 kids. Now look at kenya or somalia, which have birth rates close to 5. All without a corporate farm system to feed them. And also draughts. That is where overpopulation is really taking a toll, in sub-saharan africa and the caribbean. Those countries can't farm well due to weather and soil erosion, so they can't feed a growing population, but they still pump out 4-5 per average woman. Sorry to burst your bubble but we really don't feel the wrath of explosive population growth here in the USA. What we feel is the want for newer, better things and technology that is nice, but doesn't threaten our lives.
Also not claiming people in the USA aren't starving or suffer from inadequate living conditions, but by percentage it is a LOT smaller than the many struggling countries.