George Lucas didn't sell Star Wars because of the Prequel backlash or because he wanted to raise his 2nd family. It's because CGI, Lighting, Cameras, etc. had come so far that there was nothing left for him to innovate. In the featurettes of him brainstorming in 1994 had him watching Buster Keaton in amazement asking himself "how did he do that?". By the time he was done with the prequels he had pushed the industry so far forward that there was nothing left for him to do. He transcended the artform.
The sequel trilogy really would've just been a soap opera about the Skywalker family.