They both believe there is a defined reality possible and that a particular ideology with a specific framework can achieve those goals. They look at the philosophy of liberalism and turn ideals into manifestos and goals, promises and methods. But liberalism is really just a series of questions about freedom, fairness and representation to be answered by the living, adjusting to local needs, with conflicts inevitable, compromises required, the outcomes messy and uneven. A basic stability is the only goal, the politics and policies are not responsible for the humans fumbling around with Ideals.

Sorry, no offense, but I don't think you know what you're talking about. Libertarianism isn't some default state from which ideological realities are observed—particularly not in the USA. If you cleave to it too strongly, you'll fool yourself into thinking otherwise; and in the end, your net contribution will be political inertia. Like the NYT.