@justwanthappinessandpeace,
I've got to go back to slavery abolitionist movement or the civil rights movement. The counter argument would be that people would perhaps talk and make speeches and protest anyway in open defiance of laws limiting freedom of speech.
Lots of religious leaders are credited with starting the abolitionist movement before the American Civil war, and Martin Luther King, also a religious leader, was given a lot of credit for the civil rights movement.