In other words, SHUT UP because we told you to. For some reason the shirt seems un-American and anti-freedom. How about a different shirt that says: “You are a special and unique individual who I would love to discuss things with, even philosophy, theology, rights theory, and science, including fake sciences which seem so useful to Socialists, Fascists, and Communists these days in rationalizing violence against people who do not hold the same opinion as they do. I may not agree with you, but I would defend your right to have your own opinion and express that opinion, as I know you would do the same for me.”