International immigration has to be distinguished from migration. By crossing an international frontier, one changes their membership status. From being a citizen to being an illegal alien". One of the key drives of international migration is material inequality. Relatively higher standards of living act as pull factors. Although some of these opportunities (i. e. cutting fish heads) are poor relative to our standards, they may be an improvement in an international scale. Just about every country allows their citizens to freely leave (except north korea) However, there is no international right to immigrant. Sovereign states have the right to decide whether or not to let you immigrate. Employers like immigration; vice versa for employees: every immigrant is a potential worker. All immigrants are a cultural presence: embraced by cosmopolitans. A social fact canada is multicultural, in terms of linguistic, religious, cultural diversity. A normative position about how society should be ordered.