Fascism is a Right Wing mode of operation. Those who want you to believe Nazism or Fascism of any kind should be placed on the Left side of the spectrum are politically or historically impaired and hope you are too.
The Nazi's coined the term "National Socialism".. The claim of being for the masses of people is the only similarity with Left Socialism, both are mass movements. Hence, the Nazi's usurped a popular term.
The "Democratic" Party's main reason for being is not the spread of Democracy. The reason for being of the Republican Party is not some sort of position on being a Republic that differs from the Democrats. These are throwaway terms, just like "National Socialist" was used for mass appeal but is not actually connected to "Socialism" of the sort Socialist and Communists or Social Democratic Parties are on the Left..
In fact, the first order of business for the Nazi's was the destruction of all Working Class organizations,the Unions, the Socialist Party and the Communist Party were all destroyed by them.
The Capitalist Class remained in power. In fact they bankrolled the Nazi's.
Fascism is a strategy used by the Capitalist class to remain in power during a severe crises , in this case the deep economic dislocation caused by World War One. It uses thuggery and racism and provided alternative explanations for the economic and social misery. In this case they scape goated Jews and the Left.
I have heard at least one Radio Pundit try to re-place Fascism on the Left using the confusion around the term National Socialism.. Our education system leaves people bereft of the ability to pick up on the lie. They know little about even recent history and less about Political Theory and cant tell a Socialist from a Nazi...
I hope this was of some help.