First, it liberates you from uncomfortable and destructive associations and arguments. While the Bible promises Christians that they’ll face challenges and sometimes-fierce opposition in their lives, it is vastly better to face opposition for the things you actually believe and the values you actually hold rather than being forced to align with an ideological and political “package” you do not want to purchase.
Second, it opens up opportunities for unlikely friendships and unexpected relationships. It changes your posture towards the world to one that welcomes allies case-by-case. It cultivates a posture of openness and fellowship.
I can work with a critical race theorist to end the injustice of qualified immunity, for example, without embracing critical race theory. I might next defend Christian students from a challenge to their religious liberty, joining with “law and order” Republicans I just opposed and opposing critical race theorists I just joined.
Third, it can increase your knowledge. When a person who possesses a partisan mind faces a new challenge, he often immediately retreats to his cocoon to discern his response. We find “our” experts, and “our” experts don’t challenge our minds so much as they equip us to fight the partisan wars to come. An independent mind does its imperfect best to seek truth wherever it is found, including intentionally seeking out the best opposing arguments.