He doesn't swim naked, so he takes the summon anyway.
"Only one I've found, though I haven't checked them all and one of them wanted eight days to set up a quarantine before talking to me."
"Yes, I expect so. Is worrying about sprouting wings, which is not a disease, also ideological?"
"Well, I'd suggest doing it expectedly instead but somehow I don't think it'd help. Congratulations on not calling them filth creatures!"
"There's the planet that wanted eight days... and the ongoing civil wars... and a handful of people who I extracted from a civil war to wait it out on Earth... and you guys. And the places I haven't checked. Do you suppose that from this starting point your society could learn to live with the idea? Because otherwise it's going to be very hard to humanely supervise you and I don't think leaving you unsupervised is the best plan for the next while as things settle out."
...Cam produces transcripts of recorded conversations between this planet and other planets since the end of the world.
"Well, if they have been they weren't recording. How do you anticipate that going? What if your societal consensus is outnumbered?"
"Well, I suppose it would be unreasonable to expect you to be an oracle. About all those purity-keepers you're prophesied to kill..."
"The amount of time it is taking you to accomplish this is not the thing that's bothering me."
"There probably isn't enough time to convince the right people to stop sacrificing purity-keepers in time to save any purity-keepers from being sacrificed, and if you somehow did anyway, it would still be really disruptive. It would... it's... the point of sacrificing the purity-keepers, and doing it in this way... it's that now the time of purity-keepers is over for good and we don't have to go around killing people anymore. And the message is being successfully communicated. Suddenly deciding at the very last minute not to kill the purity-keepers after all... well, people might get the idea that we weren't taking the 'not killing people anymore' part seriously. It would damage the consensus. And it's a good consensus."
"Are you cognizant of the irony of announcing that it's time to stop killing people by killing a bunch of people?"