secessionist
A person who isn't happy with the established order and is obsessed with revisiting a time when they imagine life was better. Often relating to Jacobean times when Scots believed the Stuarts promised nirvana and a utopian ideal. Currently the Stuarts have been replaced by Nicola Sturgeon and the SNP.
The secessionists reckon anyone who disputes their cause is a mere quisling, a misguided twat.