I've just finished watching the Starcraft 2 Legacy of the Void "movie", and I just don't understand the whole "oh no, if I cut off my nerve cords the Khala will die" thing. I might not know something or there's a discrepancy in facts. From what I know:
- the Khala is the natural psychic connection between all Protoss, mediated by the nerve cords;
- one can be closed off from the Khala by cutting off the nerve cords OR by kind of hating the other Protoss too much (okay, so it is not exactly clear to me, why the Tal'darim don't have the Khala, but the Aeon of Strife and the Tal'darim mentality point to something akin to this);
- the nerve ending is a biological part of the protoss body, thus cutting it off does not affect any offspring (also implying, that for the Nerazim, cutting it off is somewhat like a circumcision).
Now if the above are true, why is everybody acting as if this will surely and permanently change the Protoss? Okay, everybody cuts it off, or almost everybody, so Amon is weakened, but wouldn't the next generation have the nerve cord, thus the Khala? I mean okay, so it's kind of needed for the Protoss to leave the Khala, so western liberalism can be raised on a shield - real hard to talk about individualism with something like the Khala -, but I just don't get the in-universe logic of it.