Final answer:
Evidence of German support for Weltpolitik includes broad backing for Nazi policies aimed at overturning the Versailles Treaty, the 'stab-in-the-back' myth generating nationalistic fervor, and electoral results reflecting a shift towards extremist parties promising the restoration of Germany's power.
Step-by-step explanation:
There is substantial evidence to suggest that Germans supported Weltpolitik, a policy emblematic of a desire to establish the nation as a major world power. Weltpolitik involved foreign policy aims such as acquiring overseas colonies, which was a significant aspect of Germany's ambition for expansion particularly in Eastern Europe. This quest for 'Lebensraum' or living space was adopted by the Nazis, who promised to overcome the humiliating conditions of the Treaty of Versailles.
The humiliation from the treaty, combined with the economic difficulties and the 'stab-in-the-back' myth, created a strong sentiment among Germans that the nation had been wronged and deserved to restore its grandeur and authority, leading to broad support for Hitler and the Nazi's reversal of the treaty's terms. Electoral results from the Weimar Republic period also indicate growing discontent, as representation of the Nazis rose significantly, supporting the notion that many Germans desired a forceful national comeback on the world stage.