No it's not. "Leads to" signifies that something turns into it. The regimes that are commonly referred to never turned authoritarian, they started authoritarian - much to Chomsky's and other libertarian socialists dismay.
Socialism inevitably is authoritarian.
Empirical examples tell you what it is. You’ve already agreed with this.
“The regimes that are commonly referred to never turned authoritarian, they started authoritarian - much to Chomsky's and other libertarian socialists dismay.”