It is the thesis of the immigrationists, that migrants cause the wealth of their host country. The example of the US, Canada, Australia is cited. This is based on a distortion. Those historic migrants brought skills in demand in the receiving country. Today’s entrants are often unemployable in a post-industrial society. At best, they can do things whose indigenous practitioners are redundant on the labor market. As a letter writer put it, if these masses are so useful, then why are they unemployed, unemployable and welfare dependent?"Absurdities Called Public Affairs." By George Handlery, The Brussels Journal, 11/27/14.