<p>For many in Britain the issue of the country's membership of the European Union is the biggest political decision of their lifetime. It affects their livelihoods, their communities, the life chances of their children and their grandchildren and, above all, their sense of themselves. The existential nature of what is at stake is, perhaps, the reason the rift in British society is so deep.<br>Geraint Talfan Davies, writes as a committed European...