It's hardly total and utter control. Also, you're still trying to play the customer not fans card. The club have never said it's one and not the other. I much prefer to be treated like I'm a customer in that it's better to treat your fans as if they have a choice, ie better choice of...
And of course you know just by looking at them who's been vaccinated or who's actually carry delta. I bet any event where the virus was spread, people had no checks, no mask and were happy, eg Cheltenham and Liverpool. Except it then went tits up!!
Support your local team, hopefully it's a non league one. If you don't want to comply then don't. Means you won't be at the Amex and you probably won't be missed!