>>27584
I mean, I think you are right on your first attempt. It is a syrupy movie that's goal is to blast 50s, 60s, and 70s nostalgia.
I don't agree that the plot of the movie is inherently conservative. That interpretation comes from Forest being seen as a "conservative" character, and Jenny as a "liberal" character. Forest follows the expected lifepath of school, being drafted into the military, starting a business, investing well, while Jenny follows a destructive lifepath of counterculture, drugs, sex, prostitution, and eventually death.
Some will argue that that is inherently conservative, but Forest was hardly a conservative minded character. He consistently sided with the liberal groups on issues of the day, for example segregation, but overall didn't think much and only subtlety gave his opinion on things.