Sure.
My co-worker's partner is a builder who has to compete with Eastern Europeans that are able to severely undercut his prices. By having several people share rent and expenses, they are able to earn money and send it off home to their families who need it most.
This is perfectly understandable and she -- the daughter of Irish immigrants -- accepts that she'd do the same if the roles were reversed, but having just had a baby with her partner, it has impacted how much income they get as a family themselves. She works weekends just to earn a bit more to support her child and partner so it's already impacting her quality of life.
They don't hold grudges against East Europeans - by all accounts, they are just as good as anybody at construction. But it begs the question as to how long families such as hers have to support other families in Poland/Romania by forfeiting work. On that basis, she voted Leave.