It's hard for me to understand why this is even an issue. Homosexuality isn't a gray area in the Bible. It's sin. There should be no gay preachers, period.

Where are our lawyers in this? Individual churches pay for individual churches. Follow the money. Did the diocese buy the church? Is the diocese making payments? If so, give it back to the diocese. But, otherwise, the leadership of mainstream denominations has failed to lead, and has caused the split within the church. They then should benefit from their heretical decisions that go against Biblical standards and centuries of church doctrine? Seems so.
Leave anyway. The true church is not a building! and congratulations to those who have had the courage to stand up for their convictions against this rising tide. This is a spiritual battle and not a physical one. Keep the faith!
Homosexuals can, and have changed, hence the logic of the "church" is wrong on so many points. So leave, and reach out with the true gospel of hope and healing to all broken people caught in any sin. One sin is not greater than any other, but accepting sin is wrong on so many levels for a believer. Bring hope!