Please get it right — I wrote neo-CONFEDERATE, not neoCONSERVATIVE.
No, I got it right. You equate paleo-conservatives with Confederates here:
'I've always considered them to be amalgamations of the America Firsters, the Know-Nothings and the Copperheads — isolationist, nativist and sympathetic to the Confederacy.'American-Firsters - those that believe that the US does not have the constitutional authority to meddle in other nations affairs, or to be forced to support them via American taxpayers monies.
Know-nothings - those that supported tougher immigration and natualization.
Copperheads - "Peace Democrats" who were against the illegal actions of Lincoln and the Black Republicans. Thousands were jailed for speaking out against Lincoln and his administration.
Isolationist - one who does not espouse the doctrine in which the entire world is regarded as the appropriate sphere of influence and domination.
Nativist - favoring the interests of inhabitants over those of immigrants.
Sympathetic to the Confederacy - those that believe the South was right, that secession was legal, and that Lincoln was wrong.
Those are traits (assumed by you) of PALEOconservatives. Obviously, NEOconservatives would hold the OPPOSITE views.