If Dublin were playing a combined team of made up of the English aristrocracy and the DUP, I still wouldn't shout for them.
Similar to what some fella said to me about Scot's supporting Germany when playing England, despite the Germans killing more Scots last century than any other Nation.
I know fellas who would be very much in the brits out mould, but they get very emotional when they hear scottish and welsh fans sing their anthems, ah shur there not british really its only england we hate,