Why did Jane Fonda retire from acting after this?

https://www.quora.com/Shelley-Long-was-one-of-my-favorite-actresses-of-the-1980s-in-the-sitcom-Cheers-Would-she-have-had-a-better-career-if-she-had-stayed-with-the-show/answer/Jon-Mixon-1

Jane Fonda was an A-list actor throughout the 1970s, and into the early 1980s. Her only “break” was from 1973 when she married activist/politician Tom Hayden and gave birth to their son, to 1976 when she returned to films with the commercial bomb The Blue Bird, an animated film which today is nearly impossible to find on television (See below). However when she came back, she came back strong.

Her next 10 films were all box office and mostly critical hits, including the Vietnam protest film Coming Home, the prescient (thanks to the Three Mile Island nuclear event that occurred around the time that it opened) China Syndrome, the eponymous film created from singer Dolly Parton’s pop hit 9 to 5, and her her father’s final feature film, On Golden Pond. In fact, had Rollover (her pairing with then A-lister Kris Kristofferson), The Morning After, and Agnes of God hit, Jane Fonda would have been the biggest female performer of the 1980s, as well.

However, they didn’t, and Fonda’s foray into exercise videos and her burgeoning relationship (and then marriage) to billionaire media mogul Ted Turner, made it largely unnecessary for her to perform. The commercial bomb that was Stanley & Iris (her pairing with then-A-lister Robert Deniro) led to a fifteen year hiatus from the big screen. She came back with the truly awful (although commercially successful) Monster-in-Law with the then A-lister Jennifer Lopez.