The quote from Thomas Jefferson comes to mind, "I have sworn on the altar of God eternal hostility against every form of tyranny over the mind of man." I subscribe to his philosophy. All people have the right to believe as they will and to share their beliefs with others. As do others have the right to listen or not.
When we endeavor to diminish another's opportunity to share their beliefs or even to coerce them into subscribing to our beliefs, we are just practicing tyrrany all over again. When we start to justify our actions against others because we are 'right', we're setting ourselves down the wrong path.
We need to work towards clarity of communication and lucid debate of issues. This is what will elevate us as a culture and as a people. When ther is openness there will be an opportunity for understanding and we will improve the lives of one another.