>>1505
>Is there anything that sets those people apart from the souls who left?
They have the potential for breaking out of "humanity". This is a very long story so idk if I can do a TL:DR of it, "humanity" is not what we normally think of. It's a sigil, pic related.
It's very harmful, it was meant to fix the problems caused by Babylon and their breeding with botsoul humans, by placing two of the "locks" of the body in an always open position. These are a different set of locks than the ones known in yoga (jalandhara-throat, uddiyana-abdomen and mula-pelvic banda-lock). They are one step higher than mula banda but I'm not sure if they are on the root chakra or sacral chakra. By locking these two in open position, the 3rd one is ignored, this is causing mental and emotional problems for humans ever since, aside from the strain of having these 2 open. There's been a saying in some situation about
>getting a crowbar up your ass
and this is a mental image of what one of these do. Human genetics have adapted to the installment and become corrupt so much that when the sigil is shut down, these people will physically die. Because it's a harmful thing it will be shut down.
A person whose soul definitely has the ability for denying this thing would be given genetics which leaves a chance to fix it while surviving.

That's the answer to
>what sets those people apart
It does not mean those who left are unsalvageable, not at all, it just means they cannot be saved as physically alive. Their souls just have a lethal flaw in this one area so they can't stay.