By your logic here, City are responsible for everything its fans do or say in life, which is completely ridiculous. I can guarantee you that every week plenty of people who would identify as City fans, get locked up for drunkenness, domestic abuse, drugs, and whatever else. Should the club be issuing a statement every time, of course not. You are confusing MCFC and a famous rock star who happens to support the club. If Liam has annoyed you fine, don’t buy his music or merchandise, there are plenty of City fans who don’t much like him or Oasis, but it has zero to do with the club.