Well, the point was, basically, I don't think Greoric is talking about "liberals" specifically. He's talking about leftists, who can also be hard-line socialists, which ought to be separated from the liberals. And many socialists tend to turn towards the authoritarian rule, as a result of wanting to increase the power and control of the state over the population in order to impose equality.
We have to be a bit careful not to cross the line from presenting people with equal opportunity, to enforcing equal outcomes. Sometimes, the leftists tend to cross this line in their eagerness for egalitarianism.