The whole issue of patriotism here depends on whether you view Northern Ireland and Republic of ireland food producers and farmers as being different. The vast majority of the produce being purchased by Tesco ireland has switched from suppliers in the 26 counties to across the border. It is still produced on the island and is not coming from mainland britain. The reason for the switch is simply as they gain a better profit margin as suppliers in nortern ireland have to sell in the weaker sterling. Eiter way Tesco are winners but as I say it isnt unpatriotic unless you recognise the border