"I thought about a certain conservative insistence that Christianity (and other religions) can or should exclude queer people as unclean, sinful, and offensive — at church and in the public square."

Those Christians need to remember that Jesus taught us to love one another. Do not remember him saying one doesn't have to if the person is gay, black, Arab, Hindu, and the list goes on.

Unless one is actually harming some one, their property, or taking something that is not theirs, they have a right to be who they are. Like it or not, they are created in God's image, and as he said at the end of creating Creation, He looked upon it and all was Good.