What welcome mat did any of these get ?Suppose you mean that the Ulster Scots , the Vikings, the Normans the Gaels all came here illegally. Our people means all of the fore mentioned, So stop that racist drivel and erase that poor me ,poor Ireland mentality and maybe you could remind yourself that there are over 5 million of up to 3rd generation Irish living in the UK and commonwealth who would like to see a change in the pathetic Irish view of outsiders. Known as the village mentality.
The Irish resisted and had the right to resist all these peoples.
2ndly - the Irish genetically and culturally come from the same family tree as these people - we are different members of the same family, we already share extremely similar genetics and culture, so any addition was only adding to what we already had in the first place- it was no dramatic change to what we were already.
This is incomparable to Africans, Arabs, SW Asians, and to a lesser extent even E.Europeans who have Mongol blood in them.
Your point is invalid.
Define what you mean by racist?