They do not worship the Trinity. Ask them. But you do worship the Trinity. Different Gods. Is Jesus God? You say so and worship Him. They say no and do not. Different Gods. Not "incomplete" understanding but DIFFERENT understanding, different Gods.
This could get us into a mess of trouble. Does my "understanding" of a thing establish the actual identity of that thing?
Many years ago, when I was working in Africa, I was on an inspection trip in extreme northwestern Kenya, where we had built a school in a central village on the edge of the Sahara. I walked into a schoolroom that had been completed a few months before, and saw a couple of dozen large rocks (small boulders, actually) lined up in rows in the center of the room. I thought, "Wht are they storing rocks in this schoolroom?" Later that afternoon, I was escorted to that same room, but now there were students and a teacher present. The students were all sitting on the floor, cross-legged, one student behind each of the rocks, with papers and a book spread out on the top of the rock; the students were writing down their lessons on the papers laying on the surface of the rocks. I then came to "uynderstand" these weren't rocks; they were desks. But did my "understanding" change anything about the actual identity of those objects in the classroom?
So if I "understand" God differently from a Jew or a Muslim, does that different "understanding" actually change the identity of God? That would seem to suggest that God might be nothing more than a figment of my "understanding." Does my "understanding" determine who God is? And if I change my "understanding," have I now changed God?
Soemone might say that those rocks in classroom are still rocks, but they were being
used in a different way (i.e., as desks), so that my "understanding" adjusted when I saw their
use. But,
ceteris paribus, might that mean God is always God, but that Christians, Jews and Muslims "use" God in different ways, provoking then different "understandings" of God?
Without taking refuge in that perennial Forum cliche -- "Life is messy," this looks pretty messy to me.
Tom Pearson