If we can make the other wrong, then we make ourselves right.
If we make ourselves right, then we achieve a sense of superiority.
Behind the sought after sense of superiority, is a more human need—the need to be recognized/seen/appreciated/validated.
The more a culture is fractured along ethnic, political, religious, and ideological lines, the more making the other wrong you will find since nobody feels any of these things in sufficient quantity.
It is a self-defeating coping strategy, like violence, to bring harmony to an out-of-balance situation.
Very few among us have the rare ability to meet it with a dose of presence.
That means taking more than a few moments before offering a response, attempting to see things from the other's perspective, and then offering a response that serves to heal vs. otherize, even if it is at the expense of a cheap ego defense.
A fight to make yourself right and the other wrong, like a fight with a lion, leaves only one party standing in the end.