We might make some progress by calling them "socialists" rather than "liberals." The strange mixture of libertine hedonism and totalitarian statism that comes out of the mouth of the average liberal certainly challenges the capacity of logic. It would seem doubtful that the average Democrat has any realization of just how illogical, absurd, and deranged the whole enterprise is.
The flip side of liberty is responsibility. They won't work without each other.
Liberals don't want liberty but rather liberality. Permissiveness not freedom. A velvet glove on an iron fist.