If race activists did not try to stop oppression of people of color, the United States would be a very segregated country. The small actions like interracial study groups or lunch-ins, showed communities that minorities were not less than humans. Small efforts like these can turn into something more like march into the state capital.
If no one in the gay community spoke up about gay marriage been illegal then it would still be illegal. When people talk about what the nation needs to change it brings about change. People like James Albertine helped people