What is unity in a church?
Some think that it measn every person believeing the same things. I can see value to that. A lot of arguments would be avoided if we all agreed on all theological matters. In fact a lot of arguments are avoided by the level of agreement we already have.
Still, doctrinal agreement isn't everything. I have been in churches where there was as close to 100% doctrinal agreement as I have ever seen, but there wasn't much unity. In fact they fought often like cats and dogs over personality and control issues. So it seems to me that unity without an actual love for one another is impossible.
That kind of love though is from above, and only from above. Only God can give us a love that allows us to disagree with others over important issues and still worship, pray, and work with them.
That kind of love is vry evidet in my church. That's why we have no fear in facing potentially divisive issues. We know that even if there is not unanimity, there will always be a loving consensus.