Why was the Madagascar Plan not used?

Strangely enough, the idea of corralling Jews on Madagascar was nothing new. The plan was first proposed in 1885 by the German scholar Paul de Lagarde, whose writings were a major influence on Hitler. It was later touted by a wide range of politicians and anti-Semitic figures across Europe, some of whom subscribed to the erroneous belief that the Jews were the ancestors of the island’s Malagasy natives