Should we also ask people on the census if they believe in the right to free speech? The results wouldn't matter because the law of the land takes precedence. If they don't like the law they can change it but the country is based on the separation of church and state

We all have a right to free speech. However, I think it is against the law to speak of overthrowing the government by force. I realize this isn't what the poll asked, but it is similar. Do we have the right to speak against the constitution? I am sure there are people in this country, like some Muslims, believe that law comes from God and therefore (pardon the expression) trumps civil law.