Karkat's not just his leader any more. Don't you get what I've been trying to subtly imply?

[she exhales heavily.] He's his moirail. It's been like that for a while here and back in the Veil it was just confirmed too.

So Karkat's going to do what he thinks is best for Gamzee. And right now that's keeping him pacified. You may not like it, and I also may not completely agree, but I can guarantee Karkat won't like the sound of this idea at all.