I don't get why the other factions would try to stop us from opening the portal if it has literally nothing to do with them. Is there any canonical reason why races aside from the Vex want to interfere?
As stated they are very much able to kill you, and they are very real. Take the taken kings ability, take wills and subjugate, they can perfectly simulate these beings and their tactics and give them the purpose of exterminating you. Now are they real in terms of thought, yeah...if you work at a job and are told what to do or have goals to meet and you do it, did it not require thought and actions.
The vex can make mistakes according to praedyth, but so can humans, in fact it is a descriptor for us (to be human is to err)...to tie in...we see the vex as wanting to encompass everything and to be the answer to everything in the universe, honestly same with humans. [b][i][u]The error of both, two error prone forces bent on destroying the other because the other wants to destroy the other for control of everything[/u][/i][/b]. It's why we need to look at the actions of kabr, praedyth, pahanin, ishtar scientist, clovis scientist, and why the weapon future safe is important.
See who's robed as if a god, who stands with pride above the rest!
Destroy this ancient nameless fraud! Destroy the one whose death was blessed!
A fragment from Osiris
—ot been easy to gather this foresight. Prophecies are tricky things: they change the future they foretell. When a seer shares their knowledge of a coming event—any event, whether good or ill—there will always be those who gather to prevent it. Say too little and your meaning is lost. Say too much and you have made the task of your enemies easier. You must say just enough so that the few who can listen will hear.
I have done all I can. The rest is up to you. You must trust in me.
You must trust in yourself.
—Osiris