Because the answer is easily that you love that child no differently than you have or treat them differently. That is not only what the church teaches but its common sense.
So you really believe that the church says parents should take NO additional action when one of their children comes out? Really? You REALLY think that's what the church says?
And seriously, it's difficult to take it as an honest question by Viny when he purposely misspells the name even when its been called to his attention. I'm sure he'll respond by saying that such a response is "emotional." I'll pre-empt that by calling him a hack and pointing out that his argument is "pretty vanilla."