People are entitled to there own opinions. Its just that simple but at the same time not. People say you should speak your mind but, what happens if they don't like your opinion? They shut you down and tell you to bite your tongue.
The thing about human nature is that most of us don’t like hearing stuff that does not fit there agenda/idea of the world. If something does not fit there puzzle they decarded it.
In arguments when people are so worked up they start putting there own options/ bias and that's all it is OPINIONS. You do not have to argue with someone but you at least hear them out and tell them your own thoughts on the subject.
I understand this is better said then done but, everything that comes out of our mouths is bias and our opinion based on what WE have experienced in our own life.