No government can ever take away a persons natural rights. Even if your state constitution didn't grant a freedom to speech its still illegal to take away god given rights. If it does its cause to rebel and destroy that government.
Well, I agree there are tyrannical governments. For example, one which takes away the right of the people to self-govern on the basis of social reality. One which, under the guise of protecting individual rights, elevates judges to super-legislators.