You must think of the prime minister who will have to go through the potential loss of Scotland and Northern Ireland
Impossibly even Wales it would be a deeply personal and professional humiliation due to Prime minister after Prime minister not dealing with the issue
Which is true for a lot of issues their are not incentives to fix in a modern democracy
What made the United Kingdom successful and when it was the most successful was when it was and a democracy
It was a monarchy Republic with systems of representative government but not democracy until the end of world war two