When it was irish, they were white. And when it was poles in the UK, likewise.
Perhaps resistance to mass immigration, which correlates with race, isn't based in race. Perhaps almost everywhere, almost always, people resist the mass movement of new and unfamiliar people into their territory. Perhaps that has been the overwhelming democratic consensus of every western democracy since mass immigration was a thing, and it was only ever enabled by an anti-democratic elite consensus.
Perhaps resistance to mass immigration, which correlates with race, isn't based in race. Perhaps almost everywhere, almost always, people resist the mass movement of new and unfamiliar people into their territory. Perhaps that has been the overwhelming democratic consensus of every western democracy since mass immigration was a thing, and it was only ever enabled by an anti-democratic elite consensus.