Celtic and other Scottish clubs are worse but the still have their fair share. But more than that the just think the are far bigger than the actually are. A Twitter post lead me to their forum sometime last season and a thread where most of them thought they would finish top 6 in the Premier League. Deluded.
Possibly but they are a huge club stuck in a mini league. There is a reason Rangers and Celtic will never be allowed to come into the Prem and that is they will eat the lunch of the likes of Brighton and Brentford. They won’t get top 6 given the competition but given Prem cash they would be able to buy a much higher standard of player than they can buy now and grow.