"All right. I don't expect you're going to like this no matter how I frame it, but I'm going to try framing it anyways."
"First. On my model of reality, the souls who get consumed in Abaddon end up somewhere else, and we will eventually debate how nice or terrible that place probably is, and the souls in Hell and the Abyss and possibly the Maelstrom are more of a problem. On your view, the problem is the souls from Awaiting-Consumption being raised like cattle and being consumed in Abaddon, and those mortals who sort Neutral Evil and are terrified enough of Hell and the Abyss that they choose Abaddon, which, on the best statistics I've been able to find for Golarion, is around five percent of the non-Boneyard-baby population. I haven't, yet, been able to find out whether fifteen percent of Boneyard babies are choosing Abaddon, which would bring the Golarion's real average up to ten percent of all souls born being destroyed; I hadn't put a priority on knowing, before now, because it didn't matter much to me. You are able to command my resources if you want to find out from Sarenrae's Church what the actual figure is."
"I don't know what the statistics are for the larger multiverse but it would not surprise me if, Pharasma being Pharasma, it's around one-ninth sorted to Abaddon and then, maybe, half of those not going to Hell or the Abyss."
"Your stance that you would only accept a very tiny risk of destroying the multiverse, in order to save souls in Hell, may perhaps be valid given your view of things. That you should not, in general, accept a tiny risk of destroying the multiverse in order to fix it, does not strike me as equally valid. You want to minimize that risk but you should in fact be willing to go to some extreme lengths to fix Abaddon."