Imagine needing to know the beliefs of every single person involved in a game, film, TV programme, etc. When buying the game, the money goes to many different people so you'd need to make sure none of them had ever said anything you disagree with before spending your money.
I posted something along these lines on Reddit and was told that "trans people are literally fearing for their lives over this" - no they aren't, or, if they are, then they are completely overreacting. No matter how much money JK Rowling puts into anti-trans groups (if she even is), none of them are going to gain any traction within the UK. People call the UK "TERF Island" but none of our major political parties want to kill trans people.