Final answer:
Mainstream America had varied responses to counterculture, with some supporting and embracing it while others viewed it skeptically or with hostility. The counterculture movement led to political and social changes in the country.
Step-by-step explanation:
In response to counterculture in mainstream America during the late 1960s and early 1970s, there were varied reactions. Some Americans supported and embraced the counterculture movement, seeing it as a way to challenge traditional values and policies. Others, however, viewed it with skepticism and even hostility, seeing it as a threat to social order and the American way of life. The counterculture movement also led to political and social changes, such as increased government attention to poverty and injustice.