It is "per head of population" that matters. Ireland (current population about 4.5m) is full of Poles, they are everywhere. The local shop in my parent's little village has a couple working there, most of the staff at my uncles nursing home are non-irish. Granted the absolute numbers would be low compared to the the UK but their visibility is much greater. Ireland has been exporting people to the UK, USA, Australia, etc for over a hundred years, and I would like to think those people have had a positive effect on the host countries. I suppose that makes the Irish more tolerant now the situation has reveresed. The UK has had a very different history.