They have a yearly fan membership at €35 a pop that has over 1 million subscribers. €35M for basically offering people priority tickets, discounted merchandise and a birthday card.
1.5M people do their tour every year at €20 a pop, €30M a year for old rope.
Their average gate is €2.5M a home game. They’ll be playing a minimum of 25 home games a season, a conservative estimate is another €60M in gate revenue.
Add in player sales and you’re already at €200M revenue before you’ve even looked at tv and prize money.
Don’t think you’ve looked into this much, if it all. Your assertions are totally baseless. They’re incredibly well run and are nothing like an oil club.