Nobody else is going to die. Not here, and hopefully not there either.
... but that's why it can't happen here. Rogue and Wolverine have been through it, there was some big war that he's not talking about. He's got a big cross out, too.
I think Banner is coming from a good place, but ultimately it's something we don't know and can't quantify. So, we don't talk. We keep to ourselves.