I handle this exactly the same way I did when I was bisexual and in relationships.
I teach my children to respect *all* people. Period. I teach them to respect another person's right to believe what they want to believe. I teach them that the earth was always round, even when the majority of people believed it was flat. I teach them that in the same way, the truth about God never changes no matter what anyone believes.
Ok..so maybe I wasn't teaching the part about God and truth never changing when I was bi.
But I have always stressed respect. Now, I stress the love of God too. I stress that His love was big enough for Him to sit and eat with sinners, to seek them out, to fellowship with them, to heal them, to minister to them.
I don't think this current stuff is really a church caused problem. I don't think the preaching on love the sinner/hate the sin has helped, though. I think the issue is pretty much a people issue. You'll find those who isolate anyone different in every group, it's the isolation and idea that "our way is the only way" that causes problems. And that's definitely not exclusive to Christianity.