I already call people what they want to be called: their names. Or, if they want to be called Snake, like a kid in my old neighborhood, that's fine too.
Language is an agreed-upon made-up thing. I'm willing to learn and use a new set of largely agreed-upon pronouns. From among these, I'll call people whatever they want. I'm also willing to use gender neutral pronouns and if he/him/his isn't good enough, I'm willing to use whatever becomes standard.
I'm not willing to learn, remember, and use uniquely-identifying pronouns. Such a request is unreasonable (and rare in my personal experience). Instead, I'll just forgo pronouns entirely: "Snake's book is on Snake's desk" is fine by me.
Which of these Stuart Reges is talking about, I don't know, so I'm willing to reserve judgment. I don't agree with calling him a bully because to me, 'bully' is a pattern of behavior, but the only evidence offered is this single statement and Reges doesn't really give us the context; and also because 'bully' is a label that's often used to discount the opinions of those with whom we disagree and doesn't really open the floor up for much discussion on the topic.