All bad, IMO. In fact, the progressivist, Wilsonian triumph that led to the dissolution of the four great empires after 1918 caused a bloodbath which is still going on, 96 years later.
Obviously, the fall of the communist government in Russia was, on the whole, a good thing. However, "national self-determination" is far from a good thing, since it uses the appearance of popular sovereignty to in fact empower progressivist, transnational organizations and individuals who are deeply evil and wish the destruction of our Republic.
As for Scotland, the Jacobites and the Highlanders (Gaelic and in some cases Catholic) were quite unhappy with the Act of Union. Their rebellions were crushed by the English and the Lowlanders, who are of Anglic origin, or at least Anglicized Celts, and many of the survivors were exiled, some to slavery, others to North America.