Because you're using your biases against people who think differently than you to justify immoral behavior.

Edit: You don't need to tolerate bad behavior, but it goes both ways: You can't justify bad behavior in the name of policing other peoples' dumb actions.

Or: Two wrongs don't make a right.

> because you're using your biases against people who think differently than you

How do you differentiate between "biases" and "legitimate disagreement"?

I do it by exploring how much attention someone's paid to they path they took to where they are. Biases generally present as short, unexamined paths.

> Or: Two wrongs don't make a right.

I would agree. Too much of justice is about negative incentives.

Because I think you need to have more empathy for why people align themselves with causes you disagree with.

If you have the time, I suggest reading "They Thought they Were Free," by Milton Meyer. It's a well-known book that tries to answer why generally "good" people joined or supported the Nazi party in pre-WWII Germany.

It's been about a decade since I last read it, but I keep it on my shelf. What I remember, though, is that the reasons why Germans joined or supported the Nazi party vary quite greatly. I remember one passage about a man who basically liked dressing up in Nazi uniforms because he loved pageantry of Nazi rallies. Another was about some Jewish children who saw a Hitler Youth parade in a movie theater newsreel, and really wanted to join.

It's well worth the read if you need to understand why hate groups are so attractive to some people. (Or, to basically "examine your biases" towards people who you have "legitimate disagreement")

I've gotten my feet wet in terms of understanding that kind of thing, but not really gotten into it. Thanks for the book recommendation!

That said, as legit as your recommendations are, I don't see how this answers my question:

How do you differentiate between biased and legitimate disagreement?

> How do you differentiate between biased and legitimate disagreement?

Neutral 3rd party?

But then how do you know the party is neutral?

And, how does the neutral 3rd party determine the difference?

I think you'll find that right and wrong are often murky or politically motivated.