Migration policy should be crafted on a state-by-state basis, allowing countries to protect their national identities.  Every state has different issues and problems related to migration. There is no monolithic economic and social crisis facing migrants around the globe. It is inappropriate, therefore, to call for all nations to improve their protections in some standard manner. Instead, immigration policy and even rights need to be approached on a case-by-case, nation-by-nation basis.  This approach would allow each state to pass a law that fits its needs, particularly those of protecting its national identity, which is a concern international law cannot approach. Maintaining an original ethnic and cultural structure is important to many states, especially those that are populated by one ethnic group. Is Israel, for example, wrong to term itself a "Jewish state"? There is nothing inherently wrong with its efforts to maintain this identity, even if that effort constrains the expansion of migrant rights.