Supporters’ club says billionaire should stand down after ‘completely unacceptable’ comments on the UK and empire Manchester United’s Muslim supporters’ Club (MUMSC) has called for the Premier League side’s co-owner to step down after he made “completely unacceptable” comments during a BBC interview. Sir Jim Ratcliffe described the UK as being a country “on the slide” from the days when it had “the greatest empire in the world”.