The United States is no where near over populated. China may be at or near her maximum population at 1.3 billion. The United States has slightly more land mass than China. We can support a population at least double what it is at easily. We only use 0.9% of our GDP for agriculture. We can support many more. Only 0.6% of the work force is working in farming, forestry and fishing. The growth rate in our population is 2.1 per woman. It requires at least 2.0 per woman to maintain the population. There is little threat of over population.
The white American people have a growth rate much less than 2.0. If you are white, your race is in decline and will eventually cease to be. That growth rate is similar world wide. The white/European mans days are numbered. Not really a big deal if one can just accept it. Unless you start pumping them babies out like a factory.
The migration rate of the U.S.A. is +2.92 per 1,000. Canada's migration rate is +5.62 per 1,000. Apparently Canada has many more people, than the U.S. has, coming into her borders. This of course is legal immigration. Illegal immigration is wrong no matter what the reason and should be stopped cold.
The median age of the population in the United States is 36.7 yrs. old. We are an aging populace and need the influx of young blood. The baby boomers are a significant portion of our population and are leaving the work force real soon. That will be approximately 100 million people no longer contributing to the GDP. If we don't grow our population with young immigrants the standard of living will decline.
There is a need to halt immigration for 20 years, sort out who it is we have within our borders, and make those that are here illegally get out. Borders, language, and culture define a country. Multiculturalism shouldn't be a part of the government schools teachings. Languages other than English should not be used for business and the border needs to be monitored in an effective manner.
People like to think that all cultures are equal, they are not. The American Indians ( I am one ) were a culture stuck in the stone age and were not progressing. When your people are using stone tools and weapons it is a backward culture. The English culture had surpassed them in many ways and conquered them as a result. I love it when people talk about how peaceful the Indians were. We were killing and fighting amongst ourselves before and while the European immigrants were coming into the land. The lack of cohesiveness and infighting among the Indian led to their decline. If you are not strong, advanced, and united enough to keep the land, you will lose it.
If it wasn't for the English culture the United States would be a third world country. Heck, we might even be a fourth world country. There is good reason to limit the rate of influx of immigrants. If for nothing else, it takes time to assimilate people into the American way of life (culture).
Without converting people into good Americans and by promoting Multiculturalism we are inviting a Balkanization of the U.S.A. That is a sure way to destroy this country. Better learn how to work together toward a goal rather than against each other. This black, white, Asian, Indian, Arab, or other racial method of dividing ones selves should be done away with. Be American first and whatever other description you like second. It is the only way.