So there were these 12 colonies who created a race of robot slaves and somehow (sorry, only watched parts of Caprica) ended up with their roombas becoming a hostile peer-level adversary with fleets of giant warships. There was a war that resulted in an armistice, not victory, and the robots disappeared for a while. Then the robots suddenly come back and wipe out all of humanity in a day, except for a quarter million who happen to escape on spaceships. The survivors spend the next few years fighting an adversary with superior technology, some of whom are indistinguishable from human and who have lived undetected among humans for decades. They're a treacherous and cunning adversary, they make intelligent plans that work. The human survivors know almost nothing about the new Cylons. They could be capable of anything, and apparently are (resurrection).
Along the way the survivors find Kobol, a nuclear wasteland where the humans also fought with the robots and got genocided - except for a few survivors who went on to found the 12 colonies.
With that as a background, when the humans get to Earth they - send all their technology into the sun* and go live with the cavemen, while a Basestar full of "good" Cylons goes off with all their superior technological knowledge to do whatever they feel like getting up to.
Those guys definitely won't ever change their minds about humans.
I mean, they did change their minds about humans and decided to form an alliance for a while. But they wouldn't change their minds again about the meatbags who created them to be slave labor and who just dropped most of their kind into a black hole.
Even if you put the remaining Cylons aside, is everyone really going to agree to give up technology? No more hot showers and clean clothes? My kid is going to die because there's no penicillin? Are the women going to say, "Hey, you know what, Lee's right!" We'll give up all the painkillers that make giving birth bearable, and dying in childbirth will become normal again."
I think they give Lee Adama a nice pat on his dumb head and say "O.K., you go play with the cavemen and we're going to build a nice city right here without you."
*other than Daddy Adama's Raptor. Keeping that makes getting rid of the big ships extra pointless, but maybe Adama made an FTL jump into the sun after the school teacher died.