It’s from a Sir Walter Scott novel, innit?
Upon googling: I misremembered. It’s a poem, not a novel. The Lady of the Lake.
Watery tarts lobbing scimitars is no basis for a system of government.
Speech isn’t ‘terrorism’, however much you might disagree with the speech.
The burning crosses were not practiced by the first klan but by the second klan. The origin is from the play the Clansman which was later turned into the movie, Birth of a Nation. The director of the movie either did not know or did not care that the cross of St Andrew looks different.
The term clan comes from Scotland and many of the white southerners had Scottish Ancestry, but the klan was for never for Scottish people, but rather for White Anglo Saxon Protestants. The Scottish influence was about the dominant ethnicity of the south and the fad for Scottish literature and poetry at the time of the second klans founding.
But in ETAs origins, everything in Euskal Herria was linked to the Catholic Church, specially on the Spanish side. If by “linked to the Catholic Church” you mean that sometimes their operatives received help from individual priests, or that some of those operatives had gone to seminar, remember that priests were involved with every political ideology and that until quite recently, seminar was the way to go to high school for free.