Johnson Senior probably is a daft old man, and should shut his geggie, but if you are going to quote him in inverted commas, then at least do it accurately.
Apparently he said When asked how Mrs Thatcher would have fixed the issue, he continued: "She would have said, 'Look, if the Irish want to shoot each other they will shoot each other whether there is a hard border or whether there is a soft border, that is something the Irish will do if they want to do it'.
He said: "She would have said it is quite intolerable that this whole question of a Northern Ireland border has come to dominate a decision about the future of our country."