And the blurring between fiction and reality means that it'll be easier to apply the logic of canon to the real world and real people.

If fictional people aren't allowed to change because of canon, and if fictional people are being treated like real people, real people are going to held up to a canon.

Real people are already held up to the standards of social constructs, and making those social constructs adhere to a canon is what leftists have been fighting against.