By promising a blue ribbon to the friendliest salespeople, the 8-Uhr-Abendblatt even pursued the rather optimistic goal of turning Berlin into a “metropolis of politeness” whose consumer society would be attentive to the needs and desires of individuals. […] With regard to the much debated question of modernity, Nazism drew on the twentieth-century trend toward a culture of generalized consumption and privacy while promising to overcome the impersonal features of formal organizations, industrialized warfare, and market economy. The focus on individuality thus leads us to characterize Nazism as an extreme variant of a broader quest for a different, more socially open, authentic, and personal modernity.

But to answer the essay’s leading question,

Was Nazism Collectivistic?

Short answer: no more than anticommunism in general.

Long answer: see here.