Why are socialists unfazed by their abysmal historical record?

The rise of the Democratic Socialists of America has made it clear that socialism endures, even after a century of catastrophic failure. There has never been a successful socialist country, but American socialists have won many of their biggest victories yet this year, most recently in Michigan.

Why are socialists unfazed by their abysmal historical record?

TL;DR

  • Socialism persists despite a century of catastrophic failure.
  • American socialists have achieved significant victories, including recently in Michigan.
  • Their platform includes substantial public (state) ownership.
  • This aligns with principles from "The Communist Manifesto" regarding state control of production.
  • Socialists' lack of concern about their historical record is attributed to utopianism and relativism on the Left.