One of the fundamental things a Mantra Thinker must insist on is that he refuses to agree on anything where discussion is limited. Respectable conservatives get paid to do the opposite.
Respectable conservatives get paid to agree that all men are equal or all the other “common ground” they have with Mommy Professor, up front.
We all know that Stalin, Hitler and Lincoln simply used phrases that had been agreed on in their respective Constitutions to completely destroy those Constitutions. Actually, Lincoln used a phrase from the Declaration to replace the Preamble to the United States Constitution, but the principle was the same.
America was very specifically dedicated to one thing, “Ourselves and OUR Posterity,” so Lincoln just substituted “All men are created equal” for it. At least Stalin and Hitler used the actual Constitutions.
The point here is that what the Buckleys called “common ground” is simply handing the whole game over to the enemy.