You saying that - incorrectly - is EXACTLY the point of the song. Hillsborough was absolutely not your fans' fault. You were the victims of a perfect storm of incompetence and a long-term, determined attempt to cover up those failures. While there's still idiots who trot out the Sun's line, most know the true circumstances now.
But your fans have taken that appalling set of circumstances and overlaid it onto everything that's happened to you since, real or imagined.
Heysel - another combination of failures of officialdom but the defining act of that tragedy was the victims being killed when that wall collapsed, after your hooligans element had charged them. "But they threw things at us" or the ludicrous "I heard a lot of Southern accents" from your own. CEO or chairman, which led him to claim it was Chelsea hooligans. I don't know if he ever expressed contrition for that statement or not, but it was a classic case of "always the victims", being blamed for the mythical wrongdoing of another group of fans.
The whole Thatcher/anti-establishment thing (which is relatively new in my experience, like the last few years). "We boo the National Anthem because of Thatcher's attitude to Merseyside". But Thatcher wasn't the Queen, or even a member of the Royal Family. And many places suffered far worse than Liverpool, particularly the coal-mining areas. Again "always the victims".
The "Allez, allez, allez" song, particularly the line "battered in the streets". It clearly refers to just that one night in Kyiv, nothing else. Yet you made it about Sean Coxm then created a media storm when the City players were heard to sing it on the flight back from Brighton. Again, always the victims.
This ridiculous thought transference that "We were justified in throwing flares and coins because someone (probably an Everton fan) wrote the word 'kopites' on a toilet door".
You rightly condemn the 'Sun was right' chant yet feel quite justified in mocking the hundreds of victims of mass murderer Harold Shipman. You mocked the Munich air disaster (as did quite a few City fans until we stamped it out) yet get upset when other fans sing 'Feed the scousers'.
Those, and other, things are what the song is about, not Hillsborough.
Always the fucking victims.