Question

what did Nazis do to demonstrate the support for Hitler

Answer 1

A racist Utopia

The Nazi regime attempted, in an unprecedented manner, to establish a system of rule based upon race. The National Socialists saw themselves as a revolutionary movement and their goal was a radical reshaping of existing society into a racially homogenous, 'Aryan' national community (Volksgemeinschaft).

The Jews were considered to be the chief enemy.

But this goal remained an unrealisable utopian ideal, not least because the 'races' existed only in the fantasy world of the Nazis. The racial homogeneity they desired could only be created negatively, through discrimination, exclusion and eradication - and ultimately by killing those who did not fit into their perfect 'Aryan' society.
These included, on the one hand, members of their own 'Aryan race' who they considered weak or wayward (such as the 'congenitally sick', the 'asocial', and homosexuals), and on the other those who were defined as belonging to 'foreign races'.
Among the latter, the Jews were considered to be the chief enemy. They were represented by the National Socialists as an 'anti-race' that had come into being through negative selection, and that had, through assimilation, deeply penetrated the German 'national body'.
The goal of the Jews, according to the Nazis, was to prevent the construction of the national community the Nazis were striving for. This racist anti-Semitism was able to build on a centuries-old Christian hostility to Jews that had, over time, become a social convention.
'Gypsies', including Roma and Sinti, were also
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