Referenda are routinely misrepresented in propaganda during debates, and often become proxies for unrelated issues and malcontents (brexit, anyone?). In practice, when you discuss actual issues, pro-Union sentiment is more widespread than reported, and most people agree that "it makes sense" to travel in the direction of closer integration. Even the issues where we kinda "agreed to disagree", like on electric plugs, there is constant moaning as soon as one moves across borders.