How about this: No means no. Plenty of people here have already expressed why they're not comfortable with having their character's appearance altered. If someone is not comfortable with the idea of something that involves them, they should have a say in it, and they shouldn't even have to justify why to you. The fact when someone says "no, I'm uncomfortable for x reason (or no reason at all)" and your first response is to not respect their feelings and instead try to justify why you should be able to do x thing, you are the problem. I'm sure we all learned about this simple phrase a long time ago.

"Can I repost your art to twitter?"
"No."
"But you'll get so many likes! I'll give you credit!"

or

"You do not have permission to edit my artwork for any reason."
"But you won't even know I edited it if it's only on my screen!"

OBVIOUSLY it removes your choice to do something. That is the entire point. People die when they are killed. Instead of just saying, "okay, i see why this bothers you," because it's a matter of opinion on whether or not someone cares, the argument for this feature revolves around "here is why your opinion is wrong and why I should get to ignore it." Because of this I can't see any point in continuing to argue over this when the opposition's reasoning is rooted in ignoring how other people feel completely and why their argument is the correct one. I get not wanting to look at frog suits, as ridiculous as it sounds to me the degree to which people are bothered by it, but the choice should lie within the person it involves, not you, because they're not doing anything that should otherwise be considered offensive to you.