Brexit and the Spillover Phenomenon: Scotland, Northern Ireland, and Gibraltar

In my research I examined the consequences of Brexit and the spillover phenomenon. Even though the United Kingdom has left the European Union on 31 December 2020 with a deal, the resulting challenges are not solved at all in 2023 either – Brexit has brought to the surface such conflicts, that London considered dealt with a long time ago. However, questions of autonomy and independence are not so easy to resolve, they have their roots in history and in this uncertain situation they came to the fore again. Northern Ireland, Gibraltar and Scotland have always meant sources of conflict for the British and all these seem to be reinforced by Brexit. Spain was demanding the renegotiation of the issue of Gibraltar; tensions between the 'two Irelands' are re-emerging on the Irish border, while Scotland is considering another referendum to leave Great Britain and possibly rejoin the EU. Furthermore, this is happening in an era when nationalism and the idea of the nation-state is gaining momentum across Europe. My question is whether Northern Ireland, Scotland and Gibraltar want to continue without London, and if yes, what are their chances: can they function independently or maybe join a country that is already in the EU? Could this exit bring about the disintegration of the United Kingdom? If yes, that would be the problem of every country in Europe, as that could set a precedent for every other minority within the continent.