My problem, well my chief problem, with the common good talk on the New Right is that it is shot through with question-begging. They assume that once you know what the common good is this awareness grants the constitutional authority, the policy skill, the economic and personnel resources and the political mandate to impose it. The knowledge problem just evaporates once they get the gnostic insight into what the common good is. (By the way,
I think defining the common good is a hard but not impossible task at a high level abstraction and basically an impossible task at the ground level).
A vast amount of common good talk strikes me more as an attempt to seize more and more power for a right wing faction that has utterly lost any intellectual humility and policy skepticism. That’s why most of the common good talk is simply the right wing version of the left’s “social justice” rhetoric. “How dare anyone oppose the common good/social justice!?”