They might not have been text book socialist but if you were of "proper stock" you definitely benefited from some socialists policies.
Thinking kinda like white USian people prior to civil rights movement... must have been nice getting all that subsidized housing and infrastructure to build your suburban WHITE utopia!
They claimed to be socialists because that was in vogue at the time, and there were some actual (confused) socialists among their ranks...until the night of the long knives.
the policy speaks for itself... you have to explain it away with "camps" "propaganda" and "war"
in fact, nazi germany's policy was hellva a lot more socialist during 1930s than USSR's, which was busy genociding ethnic minorities to industrialize and killing off political dissent while plebs were living in abject poverty.