Do You Really Have the Right to Your Opinion?

What is the truth behind the statement "I have a right to my opinion"? The truth is that statement is merely said to save people from looking like an idiot. That statement is said when someone realizes they are wrong. You can say you have the right to anything, but in reality your rights are very limited. If you have the right to your opinion than i have the right to one million dollars. What I am saying is if you are wrong in an argument don't make yourself look like an idiot by saying "I have the right to my opinion" acknowledge that you are wrong and respect the correctness of the other person.

This was written in response to https://drive.google.com/file/d/0B4N6VdfN_pCKYUt6ZkxFSHc0S3c/view