Ian Reus
Ended 14 years of Grand National sweepstakes
That's a small minority there and Catholics do indeed go to matches.This might throw some light on it for you....
https://www.belfasttelegraph.co.uk/...catholics-song-condemned-by-ifa-37951073.html
Both of which I can confirm as my family live beside the stadium and go often.
Anybody singing such songs are scorned at at the majority which soon shuts them up so that doesn't actually answer his question.