The majority of voters only had the tv debates to make a decision on . Cameron was on every one, labours leader refused to take part in one. Labour was represented but it was not the party leader , Greens, Libs, SNP, Plaid , UKIP leaders were very much involved too. I can remember Alistair Darling taking part in debates but forgotten who else from the party.
No matter areas where there are a low percentage of immigrants voted to leave, it was fear of immigration . Apart from the cities Wales is certaintly not swamped with immigrants , but fear of immigrants, in areas of high unemployment , lack of housing, very low wages , serious shortage of doctors was , cause to vote to leave .
Labours campaign was crap