In Wales:

Many employment rights that people have are a result of EU directives, and are now taken for granted.  Yet people are hostile about the EU because this message isn't being given to them, they only hear the anti-EU stuff.

Because nohardly any UK politician is telling them on the doorstep. As far as I can tell, Lib Dem MEP candidates actually do it. I have talked to a fair number of their MEPs and MEP candidates. One in particular (who didn't get elected as he wasn't top of his region's list) was commenting the other day on how he had been to some event where he could talk to other farmers (he's one, too) and had been trying to convince them that being in the EU actually helps them. I don't know how the Labour Party has framed their campaign. You have been involved in Wales. Was the party literature any good on the EU? Did the party train volunteers on it? Were the MEP candidates explicitly pro-EU?

I can answer these questions mostly in the affirmative for the LibDems. How about the Greens, or Labour?

Why can't Brussels produce good literature or good campaigns that MEPs can adapt and use for their constituencies?

It's really not the Commission't job to produce materials for use in election campaigns - that would be political interference. Where are the MEPs and MEP candidates? Do they actually have a clue?

The brainless should not be in banking. — Willem Buitler