I think they're a lot worse, if I'm understanding you..

An interesting thing about them is that they are only relevant, really, in the absence of the person being referred to. They are 3rd person but you use 2nd in someone's presence.

So if someones says their pronouns are "ze/zer" what that means is, when they are out of the room they want people to say that nonsense when talking about them.

That means controlling them at a distance - and/or, importantly, using the herd to enforce it for you.

So its a perfect tool for building a compliance structure enforced by the herd.

Also the more nonsensical the better as it requires people to abase themselves in compliance, and publicly renounce their autonomy - just like a psychological bully might go round the playground making other kids do stupid shit to themselves just to show their power.