Don't want to turn this into yet another brexit thread, Kate, but the underlying agenda that historians are already noting is that the press barons were non too pleased following Maastricht that they were losing insight into and influence over the political life of the country. The movers and shakers they had access to were moving and shaking less and less in real terms. So they gravitated towards alliance with the Eurosceptics, who already numbered the old Etonian fraternity, who saw their traditional leadership role being eroded (which had started long before of course with a series of grammar school PMs). Having been involved in studying how and why issues go critical at political level, in order to understand why some do (smoking, pester power, obesity etc) and some don't quite (alcohol, car safety, ecology etc), conclusion was that when two issues collide, they more than double the political potency of the core issue they share. In this case, getting control back (into the hands of those steadily losing it). Whatever others might believe, this is the core driver that made Brexit go critical.