The multicultural society is an illusion of intellectuals. - Helmut Schmidt

With a democratic society, the concept of multiculturalism is difficult to reconcile. Maybe in a very long term. But if you ask, where multicultural societies have so far worked, you can get very quickly to the conclusion that they only work there peacefully where there is a strong authoritarian state there. So, it was a mistake that we picked up at the beginning of the 60's guest workers from foreign cultures into the country. There is still no multicultural society [in the USA] either, but perhaps one day there will be. Singapore is a good example, but the cultures living there all speak English and the political system is based on authority.

Frankfurter Rundschau, 12. September 1992, S. 8, zitiert in konservativ.de und linksnet.de

Had Brandt not taken the lead in ‘normalisation’, other powers would probably have done so. At the same time, West German governmental and, to some degree, public complicity in the East German regime increased alongside engagement with it. This complicity was displayed both by Brandt’s SPD successor, Helmut Schmidt, the Chancellor from 1974 to 1982, and by the latter’s CDU replacement from 1982, Helmut Kohl. Complicity, however, may be an inappropriate as well as harsh judgment, as little would have been achieved by upholding the Hallstein Doctrine and continuing to refuse to enter into dialogue with East Germany. Moreover, the change in policy brought real relief in the form of visiting rights and family reunifications, not to mention buying ‘regime opponents’ out of jail.