It's insufferable cack because it is an insufferably cack song. Yea, and i'm sure there are just tonnes of liverpudlian born albion fans out there taking over pubs belting out our anthem to offset this argument. Seriously, come on now.
Strange opening question and I didn't expect to have to provide evidence for a tongue in cheek comment. Don't concern yourself about it though if you've got a thing for liverpool, I hate most football clubs.
They'll clamber together scarfs aloft for a rousing rendition of that insufferable cack 'YNWA' and think they're proper supporters, briefly.
Love their hand-me-down excuses of 'relating' to a football club 300 miles away whose real fans would have no hesitation mugging them on their way home.