Without a correct interpretation and understanding of Christian doctrine I can't fault you for feeling this way about your kids because without it anything goes. However if you were a Christian as is Alan Keyes then this feeling would be in error.
The most important relationship should be the one with God, not with your kids and Keyes is following that dictum. If there's nothing your kids could ever do that would make you throw them out then either you have really good kids or you'd be willing to compromise what's right for what's wrong. I can't see any other option.
So since I am not of the Christian faith, anything goes? Only Christians can see that Mr Keyes is correct in the way he has handled this situation?
I think that you are giving Mr Keyes way too much credit...and insulting me along the way. That's very un-Christian of you, it would seem to me.
Loving them will.
However, the entire argument is predicated on the assumption that homosexuality is a perversion akin to pedophilia, or drug addiction or alcoholism. I don't accept that.