In both Europe and the United States, that debate is currently polarized between a right that seeks to cut off immigration altogether and would like to send current immigrants back to their countries of origin and a left that asserts a virtually unlimited obligation on the part of liberal democracies to accept migrants. The real focus should instead be on strategies for better assimilating immigrants to a country's creedal identity. Well-assimilated immigrants bring a healthy diversity to any society, and the benefits of immigration can be fully realized. Poorly assimilated immigrants are a drag on the state and in some cases constitute dangerous security threats. Europeans pay lip service to the need for better assimilation, but fail to follow through with an effective set of policies. The reform agenda here is highly varied since individual European countries approach the problem very differently. Many countries have in place policies that actively impede integration, such as the Dutch system of pillarization. Britain and a number of other European countries provide public funding for Muslim schools, just as they support Christian and Jewish schools.