From around 1860 the notion took on an increasingly antisemitic tendency: Jews were described under this title as a stumbling block to the identity and cohesion of the German nation and as enemies within the Germans' own country. Antisemites such as Wilhelm Marr, Karl Eugen Dühring, Theodor Fritsch, Houston Stewart Chamberlain, Paul de Lagarde and others declared it a racial problem unsolvable through integration, in order to make their demands for the "de-jewifying" of the press, education, culture, state and economy, plausible, along with their demands for the condemnation of inter-marriage between Jews and non-Jews. They also used this definition to oust the Jews out of their supposedly socially dominant positions.