The statement “Jesus is God” is either True or False. To be united in Truth would, by logic, mean excluding those who hold the opposite position. Any unity that is based on Truth would require that.
It’s a great point, and while I didn’t directly bring it up in my post, it’s probably worth addressing here. Is
truth meant to be the thing that unites us? Forgive the pun but, it isn’t obviously true that that’s true.
I remember sitting in a philosophy course on Existentialism in the late 90s when I was in undergrad, and one of the students asked the professor what philosopher she most agreed with, of all the philosophers that had ever lived and taught. Her answer was clever and sublime. She said, “Well, me! I am the philosopher that I most agree with. There is no other philosopher that’s ever lived that I agree with more than myself.”
OK, so what’s the point of that story? It illustrates a deep and, when we think about it, somewhat startling aspect of humanity. It is that no two people who have ever lived have 100% agreed with one another. It just hasn’t happened, probably can’t happen. You will never find yourself in perfect agreement with anyone, not the pope, not your spouse, not your children, not your bosom buddy, best friend in the whole world, not anyone… but yourself. And I don’t think this is a trivial fact. I suspect rather that it has deep ramifications with regard to your points here.
I don’t think truth is actually the thing that is designed to unite humanity. As in, I don’t think there is a set of propositions that we all are obliged to assent to and thereby we’ll achieve unity. However, it could be possible that achieving union with the divine is a unitive endeavor. But here’s the thing—we don’t achieve union with the divine by thinking all the right things. One can intellectually assent to all the correct propositions and still lead a miserable life, lacking in compassion and love for others, don’t you think? Isn’t this akin to the state of the fallen angels? Their problem is not that they’re mistaken so much as that they’re prideful. So in this case, it’s not
knowledge but the will/behavior that created the chasm that separated them from God. Don’t you think this has important implications for what can unite people?