Talk politics.

I have the right to defend myself from aggression as long as society says I do. It is society which grants that right, not some external entity. You can't say that an infant has a right to defend itself from aggression since an infant has no capacity to do so. Any right that cannot be exercised is merely an illusion.

As for the right to an opinion, there are people who have been incarcerated for expressing their opinions. As for the unexpressed opinion, it is still difficult to persecute someone for that which goes unsaid.