We have a right to our opinions, but we act on what we believe; and so we have a responsibility to seek opinions that mirror reality and its potentials. That means the flip side of a right to our own opinion is a responsibility to challenge it and listen to those who would challenge it (especially constructively, but ideally anyone at all, adjusted to realistic constraints like time, energy, and mental health). I have a right to my opinion, and you have a right to tell me my opinion is bullshit. And I have a responsibility to consider that peaceably, without making you an enemy for challenging my thoughts.