Basically, the audience you and I usually interact with, e.g. here on HN, and probably at work, assuming you're in tech also, is comprised largely of logical thinkers. We don't have a lot of experience dealing with people who have more emotional thinking characteristics, so we assume that using an entirely logical argument is the only correct way to change people's minds.
I can't find numbers, and I don't know how much, or if, this has been studied, but I think a large portion of the population thinks more emotionally than we would expect them to. I don't necessarily think that's a negative thing, as emotional thinking helps, e.g. bind us together in cohesive communities even though the individuals in that community might be very different from each other on a personal level, because even though they're different people, they feel an emotional attachment to the same community.
If that doesn't raise one's blood pressure, nothing on this Earth will.
Let the tone policing commence!
[EDIT/PS:] I never said "morons". I used a literally descriptive term. Those wilting violets (uh-oh, more characterization!) who are upset by such a bland description should just try thinking a bit deeper.