Those benefits you mention are all real, yes, but they aren't likely to be vote winners among the population existing on the bones of their arse, having been kicked about by tory austerity since 2010. What I'm looking for are benefits of EU membership that should have been sold to local populations around the UK, for example, projects funded by the EU that it could be reasonably argued would never have been funded by UK central govt, let alone a Tory govt. That kind of thing rather than the likes of "we predict everyone will be worse off because the economy will grow by 4% less over 10 years than we predict it would have done as members of the EU", or "I'm going to have to queue at the airport" etc etc. It's important if we ever get a second referendum. If another "remain campaign" continues as it left of, adding the words "racist", "knuckle-dragger", "little-englander" etc as I read here on a daily basis, leave will win again, imo.
Finally, if there has been virtually no significant change between the EEC of the 70s and the EU now, I wonder why Scotland voted decisively against the EEC but is decisively in favour of remaining in the EU now, when the UK overall was earlier in favour of EEC membership? Something must have changed, my friend.