I can see that football songs that emerge from the terraces might be a fruitful source of stuff I might generally be happy to label folk. Drunken group sing-song activity: seems traditional enough to me. And 'You'll never walk alone' seems a good example.

And its tune also fits a traditional pattern, if you want to reinforce that categorization on stylistic grounds. The rising sequence and overall contour is much the same as "Hey tutti tati" aka "Scots Wha Hae".