You had a number of them in the past like Robert Bruce and you still couldn't exit. I don't know what to tell you. Maybe you should cooperate with the Irish and leave together Exiting won't take you out of the British influence. Even if it happens it will be a "fakexit" like when some of the members of the Soviet Union became independent and still served as a training ground for the Russian army.
wont be a big problem scots want to be european, european army will be at least 20 times the size then divided 2 english armies, (there will be 2 englands in the future)
then scottloand will by occupied by exactly that european army, and uk learns how russia once felt