National Socialism took the "socialism" to attribute themselves popular pro-left sentiments, same as Mussolini who originally started on the left but pivoted hard to the right.
The whole Nazi ideology is based on racial superiority. Their economic policies favoured big business and crushed labour (no unions, limiting employee protections, etc.). There is nothing they did that could be described as socialist, regardless of their name.
I saw it on the left (amongst anarchists/plateformists and postmarxists), and i used to be quite bummed about that, but it came to my attention that on the far-right, this was way worst. Their most recent "theory" is from Renaud Camus, and is basically a rehash of a protofascist theory en vogue around 1905. Called the "Grand remplacement". This is why i don't really care about protofascists in Italy or sweden. They are stupidly dangerous, but they are intellectually in the 19th century. They don't really have new authors (i mean, did you read Renaud Camus past the first 20 pages?), they don't have painters, architects, or filmmakers. They cannot build a culture on this, so they have to scramble something based on religion.
I'm sorry, but that is among the most braindead takes I've ever seen on HN.