As promised here is the video that uses Gum-Balls to illustrate the maths around the problem of immigration.
Author and journalist Roy Beck’s colourful presentation of data from the World Bank and U.S. Census Bureau.
For more information on immigration maths, see http://www.NumbersUSA.org
NumbersUSA Education & Research Foundation is a non-profit, non-partisan organization that favours an environmentally sustainable and economically just America and seeks to educate the public about the effects of high levels of immigration on U.S. overpopulation, the environment, jobs, and wages. We use government data to conduct research on the impacts of U.S. population growth, consumption, sprawl, and current levels of immigration and educate the public, opinion leaders and policymakers on the results of those and other studies.