Not ‘the Labour position.’ There are pro- and anti-EU factions in both Labour and Conservative parties, and have been for many years. Of the UK-wide parliamentary parties, it’s only the LibDems who ave always been solidly pro-EU. One of the ironies of the present fascinating mess is that the Labour leader, Corbyn, has been strongly anti-EU in the past, and his statements recently supporting Remain have been, let’s say, lukewarm. Meanwhile there are many who believe that Cameron is a closet Eurosceptic, but has painted himself into a corner by calling this referendum solely for Tory party internal management motives.
Thanks Winniesboy.