There's a reason you are seeing an angry backlash right now against libertarians/classical liberals coming from the Postliberal and NatCon right. It has to do with the fact that they can't compete with us on the substance of ideas, and they know it.
Even the "best" Postliberal/NatCon scholars are either mediocrities with weak publishing records (excluding their own house blogs) or they are older academics like Deneen and Vermeule who got tenure for stuff they did decades ago & then transitioned into postliberal activist writing that probably could not pass peer review at any credible mainstream outlet.
The Postlibs/NatCons also lose just about every debate they have with us on the substantive points, be it free trade vs tariffs (or really any economic subject), the history of the American founding, the contours of political philosophy, the evidence of whether their preferred policies work as intended (see also: Orbanism), you name it. Whenever Oren Cass goes up against a real economist, he gets his rear end handed to him or worse - he gets caught fabricating evidence or badly misreading source documents, and then he lashes out with name-calling. As a result, the Postlibs/NatCons have generally retreated from the debate space on all of these issues.
Turning to their published works, it's invariably dreck. Deneen and Hazony's books are comically superficial to the point of being visibly out of their depths on the subjects, thinkers, and historical events they attempt to discuss. When they venture into the economic sphere, they display an incompetence that does not even know the scholarly literature and that seldom ventures beyond obsolete crankery from the 19th century. And their claims about the political sphere, be it on policy or even the mood of popular opinion, are undermined by empirical evidence that they often never even considered because it conflicts with their ideological priors.
So instead, they go on the attack against libertarians and classical liberals to try to discredit these ideas through sloppy caricatures. And then they proclaim their own "victory" like the armless, legless Black Knight from a Monty Python sketch.