What's wrong with it, exactly?

[ they're obviously having a Moment here, or rachel wouldn't hesitate, but. ]

If it's really true that only some of us can go home, then why shouldn't we let the ones who want to help the rest of you get back do it? I mean, if it comes down to it, I'd say the same. I'm supposed to be dead anyway, so it's not like there's anything for me to go back to.