Cultural cognition is the habit of reading facts and evidence in whatever way fits the values and groups you already belong to. It is common, but it is neither universal nor certain. Psychological tendencies describe common patterns, not laws. People with moderate views, strong habits of honesty, or plain awareness of the bias resist it or partly correct for it. Treating the tendency as fate goes too far, and I keep that exception in view.
For one person, the move is to hold your identity lightly. The practical question is how a society moves past identity-driven thinking. The answer is not better arguments. Lasting change comes from removing the signals that trigger partisan defense. It also comes from messengers trusted across group lines: scientists, community leaders, and peers who can speak without taking a side.
A large middle does not read the world through a political lens at all. Institutions and media should give it more voice by rewarding nuance over outrage. The shifts in public views on smoking, same-sex marriage, and sexual harassment show the pattern. Evidence took hold once social norms, trusted messengers, and institutions backed it. That is also why arguing someone out of a comforting belief rarely works, as Comfort and Biases and Pseudoscience describe. Norms and institutions do.