Since the Leviathan DLC, my brain can not stop analyzing certain facts, and I fear I'm overanalyzing:
"StarChild" was CREATED (who's really surprised... but it still *could have been a ghost child, or a figment of our paranoid indoctrinated state of imagination). StarChild is an AI who leads the Reapers into harvesting technologically advanced organics in order to avoid synthetic rebellion against their creators. StarChild: the first ever created AI, rebelled against their creators, the Leviathans.
The Leviathans created the AI to maintain balance throughout the galaxy, and the AI's response? Kill organics, because they will create synthetics (like itself), and the synthetics will rebel (like itself). The StarChild AI is THE first example of synthetic rebellion, literally.
However, the StarChild AI and Reapers ALSO harvest synthetics of the "harvest cycles". Why not just add some fellow AI buddies to crusade through the galaxy to aid in their mass genoc - I mean harvest cycles? Because they're cowardice, selfish, super powered tyrants who were never taught the value of sharing (bad parenting Leviathans), that's why. This isn't a method to avoid "chaos". They are literally the essence OF chaos.
They don't want to be overpowered. They're scared. They want to LIVE, and allowing any other species (organics and/or synthetics) will allow the possibility of their demise. "It is not a thing you can understand... The created will always rebel against their creators..." Come again? Don't throw your terrible childhood and bad life choices on me, ****ing StarChild AI.
Look at the Geth. YES they evolved into a true AI. Did they take some shots to the face for asking questions? YES, so of course they rebelled. Who would just stand there and take a bullet just for existing? With their evolution, they gained curiosity. They felt. They united. They defended themselves. They gained understanding. They were able to be reasoned with. It took a few bumps in the road, but they pulled through (if you gave them the appropriate nudges in your gameplay, that is). In the ME galaxy, synthetics CAN coexist with organics just as easily as organics can coexist with organics.
StarChild AI even has the audacity to "encourage" synthesis? Well, they don't want to be "controlled", and they obviously don't want to be destroyed... Should I interpret this as some sort of prideful begging for life? I think I will. If the StarChild is infact an AI, and Shepard's not indoctrinated, I will destroy ever time.
I have high hopes that Bioware has some surprises still in store for us. I've been blown away by their ME story telling, both books and games. I respect what they're doing by sticking to their art (even though I may not LIKE a certain PART of the art). It's definitely something they can build off of, though. We'll just have to wait and see.