Answer:
They were protesting against the Vietnam War
Step-by-step explanation:
The film Forrest Gump features many US historical references, with its main character playing a decisive role in many of these moments.
There is a particular scene in which Forrest accidentally ends up on a stage amidst a protest against the Vietnam War to talk about the war. In the movie, someone pulls the cables out of their microphone and no one can hear their words. In an interview, Tom Hanks stated that Forrest pronounces the following words: "Sometimes when people go to Vietnam, they return home to their moms without any of their legs. Sometimes they do not come home at all. This is a bad thing. That's all I have to say about it. " Again, the moment Forrest has a big message, no one can hear him.