Final answer:
The counterculture of the late 1960s and early 1970s consisted of diverse individuals from various socioeconomic backgrounds, rejecting mainstream American values.
Step-by-step explanation:
The counterculture of the late 1960s and early 1970s was made up of diverse individuals from various backgrounds. While it is true that many members of the counterculture were white youths, it is incorrect to say that they were mostly from middle- and upper-class backgrounds.
There were people from different socioeconomic backgrounds who joined the counterculture movement. Some were college graduates and had good-paying jobs, while others were working-class individuals. The counterculture was characterized by its rejection of mainstream American values and its embrace of alternative lifestyles.
It is important to note that the counterculture was not limited to white youths. People of different races and ethnicities participated in the movement, advocating for civil rights and social justice.