If you do not fear GOD then you can do what ever you want and not worry about any consequences. If you fear GOD and claim to be a Christian, then you cannot support homosexual demands no matter whom in your family may be homosexual. It is about how you have sex that makes you a homosexual, nothing else. You should know GOD's word on any sexual sin and that it is not allowed for you. To just go along and pretend that it is okay to tell your children that because you love them and you tolerate their sin is wrong. Their souls are at stake and nothing is more important in the universe then where your soul is going after you die. You are condeming them to hell by going along with the lies of Satan. Just as with any other unrepented sin.