DBWI: Avoid the Scottish revolution

[Fabilius]

An AH Challenge:
Can someone come up with a viable realistic POD which makes the Irish and Scottish not make a revolution in 1848? I know it´s possible to make them be beaten back, you just need the catholic nations, France and Spain not support them but I don´t know if that´s possible. Maybe if France would have been more busy facing internal problems of their own, but I don´t know they kept pretty stable after the Republic wars ended in the Copenhagen pact.

You get plus points if you can somehow make Britain into a somesort of a superpower in the late 19th century.