And you are ignoring the huge operating expenses that United have. Barca makes a lot of revenue too, but they are broke.
It's not how much you make, it's how much you spend. United spends.
Hojlund, Onana, Mount, Martinez, Antony, Casemiro, Malacia, Sancho, Ronaldo and Varane. Over 500mm Euro's on those players and not one of them is a player United needs to keep. (Some have already left.) Not one core player from that spending spree. Not to mention the 200 million Euro's they spent this past transfer window.
700 million Euro's spent on players the past 4 years. That is why United is broke. Not only did they overpay on the transfer fee for most of the players, they are also overpaying on the wages of players.
Surprise, Surprise. United hasn't made a profit for 5 years. Gee, I wonder why? Why look at the waste of money spent on wages and transfer fees. That is why. Even better, United still owes some 300mm on installments for this fine collection of players they have purchased over the past few years.
Hate to break it to you, but United isn't exactly as flush as you think they are. Of course they are telling investors that things are fine, because they have a plan for fiscal responsibility, and you aren't going to like it. They are going to limit spending, which you all will moan about. They are going to try and increase revenue from increased ticket prices, which you will all moan about. They may sell naming rights to Old Trafford, which you will all moan about. They may sell Garnacho, which you will all moan about. They have already cut employees expenses, which everyone has moaned about.
United needs 2 really good years in a row to get back into better financial health. In 2 years, they should be able to slash the wage bill from players transferring or their contracts expiring. They will spend less in the transfer window, and possibly recoup money via sales. (Garnacho and others.)
Does it suck? Yes it does.
It's not ideal, but when you are broke, these are the sacrifices that need to be made. I know broke people who make 500,000 a year-- I know people who make 50,000 a year who will retire at 55. Revenue is one thing, but when you spend more than you generate-- you aren't in good financial shape. Manchester United went on a big spending spree the past 4 years and the bills are coming due. Just like people who rack up massive debt from spending on cars, clothes, jewelry and what not. Eventually you have to pay the piper.
The good news is United has the means to pay for this once they get their expenses under control, but it is going to take time to control their biggest expense, which are the players. It is going to take time for them to shift the bad contracts off of the books, while at the same time, hoping to not repeat previous failures of overspending on transfer fees and wages.
Arnold, Murtough and ETH really screwed over the club with their 2 terrible summer transfer windows. But the past is the past, and now United has to clean up the mess they made. It's going to take time. Since a small % of our fanbase has zero patience, this is going to be a rough couple of years for you.