A lot of that going around.
I've noticed it is a constant problem when you argue with people. Not on any particular topic either. There are a range of opinions on every subject, and many are not nearly so well thought out or factually based as others.
I believe in an objective reality; one that exists regardless of how people wish it to look. I think it is our responsibility to try and perceive this objective reality rather than read our own preferences into what we see.
Hard to do, because we all have our own unconscious biases, but at least we should try.