Yes, it does. It does say exactly this.
"Without us to stop it, synthetics would destroy all organics."
Which synthetics? Does it specifically say all models and permutations of them will "always" succeed? No, just that the general category of technologies known as synthetics eventually advance to the point where they revolt and destroy organics, and this leads to organic extinction. This still applies regardless of quarians scrap the geth or the humans forcibly reprogram EDI back into subservience. Geth or Overlord VI v2.0 or v3.0 or v10.0 will eventually get them and everyone else in the cycle. Or the humans create billions of EDI's that eventually do the same.
You can argue whether this is a problem at all given that it could involve rather large timescales, and that the Reapers are essentially the perfect example of their own logic and therefore a bit hypocritical, but there's nothing inconsistent about that logic behind the problem in and of itself.
That's why I reject the Catalyst's assertation. All it's got are its own claims of the past, no actual argument. There's no good reason to think that it would play out like that in the ME universe any more than the real one.
You're essentially arguing that the Reapers are wrong because the ending didn't pointlessly drag out for 3 hours narrating 20,000 different cycles that all resulted in the same thing. You've got the geth and every other advanced AI/VI going rogue in our own cycle, and the zha'til in the previous one as perfect case studies. Really, that's all the Catalyst needs considering you have literally no argument here.
There's plenty of reason to think that it wouldn't. In our universe, space magic sapient talking toasters that can somehow defy programming directives are impossible according to modern science, much like FTL travel. Using "but IRL" is usually a silly argument when referring to fantasy universes.
We don´t know on what scale but well, it doesn´t make Xen´s plan to reprogram again and bring them under control sound exactly safe. IMO it´s better to start from scratch, if you want to build some new VI controlled platforms. Perhaps I am a bit over cautious but better safe than sorry when playing around with robots which genocided your species once already. And it seems that they are more or less useless in isolated state.
How are the geth going to develop a countermeasure against our weapon while we have wiped out their memories and reacquired control them when they couldn't even do it while independent? The geth are under control without Reaper intervention, but this doesn't preclude them eventually being replaced by more advanced tech that is not subject to the same vulerabilites and would be able to successful revolt again.
Besides, Xen doesn't necessarily disagree with you by ME3. She just wants the quarians to reclaim their old technological superiority. Whether or not the platforms are still animated is irrelevant as long as some machinery is still intact as a useful technological base. Writing or copying "new" geth programs or other VI's from scratch isn't difficult. Indeed, in that sidequest that I mentioned earlier this is preciseley what she does if you let the geth be destroyed rather than giving them Reaper code. Even without that, she doesn't at all seem unhappy when they're destroyed in the final game.
https://www.youtube....H5V4Y4w#t=3m00s
Additionally, with metagaming knowledge, the spacemagic Crucible technology makes control of any synthetics (no matter how advanced it seems) entirely possible for any species that can build one. They start becoming too much to handle, you hit the reset button and try again.
Ok, I have to ask QMR. How does peace between Geth-Quarians equate to Geth enslaving the Quarians? Are you that insecure about the Quarians' ability to hold their own in case of further hostilities by the Geth?
Regardless, one of my favorite (probably THE favorite) fanfiction about the ME universe is this. This strip is part two of this one. Read with suggested music for maximum effect.
I wouldn't call it insecure, just knowledgable about the facts of the ME universe. Uncontrolled synthetic technologies always destroy organics unless we control or destroy them first. Handing them Reaper code that (at the time of Rannoch) we have no means of countering is suicide.
It's enslavement by definition. It subjects the quarians entirely to the will of the geth and denies them self determination over even their own planet. They can return because the geth allow it. They are subjects, forced into slavery by the geth, and can do nothing to resist their demands except resist and die immediately, or deny the Faustian bargain the geth provide and go back to die out in space. Anything the geth decide to do, they can do, and this opens up all sorts of unpleasant possiblities. Remeber, the Reapers do what they do for the benefit of organic species. I wonder what "benfits" the geth could number crunch and eventually come up with for the quarians using Reaper technology and their orange-blue understanding of morality? How long before the quarians are the next zha'til?
Even without well justified speculation on the dangers, how gilded the geth decide to make their cage for the quarians in the interim is irrelevant to the question. If you hand the geth Reaper code, you are making the quarians the equivalent of human pet animals. For an analogy, livestock are usually well fed in relation to wild animals and quite complacent, but they are still by definition slaves. Organics and synthetics are not equals, and can't exist in any state other than domination of one by the other. Personally, I don't want to be dominated by my own technologies, but if you can justify enslaving someone "for their own good" due to your ideology not giving their self determination any moral value than more power to you.
Your fanfic where the geth come to the "protection" of their new pets disturbs me a little, to be honest.
I meant to ask that as well. I assume it is either dependence or the fear that the programs will take over the suit. However, it's not as if the Quarians are the suit. It's not power armor where the Geth could control movement.
That's just a single example of something that could happen. Quarians in the short term are dependent upon the suits for survival and their cybernetics enhancements are also intergrated into the suits to an extent, and therefore so is their biology as well, meaning the geth have control of all sorts of things. Honestly, that was one of the dumbest things about the "peace" option I thought. The process by which geth software are supposedly improving quarian immunology using the hardware that was already in the suit and the individual's body is basically space magic handwaving, seemed to be aimed at generating more of The Feels (aww wook at the cute robots helping the stupid meatbags!!one11) than anything.