In regards to many letters on gay relationships and marriage and also on people who condone such, the Bible is clear on this sin of the flesh and also, in my opinion, is very clear on Christianity.
Those who believe through the son, Jesus, are Christians and follow God's plan. When you rewrite or follow a human's plan, you're anti-Christ, or in plain words, a traitor to God's plan.
In our human world, traitors are put in prison or shot. Yet, because God is a loving god, he allows forgiveness even to the lost souls. So, the answer is simple to the gays and to the ones who support gay relationships. Ask for God to forgive you and follow God's plan.
You don't believe in God? Then try making the sap in the trees stop. Go out to a creek and look at all the stones or watch the sun come out and go down. That's God working his plan for us humans.
So, my suggestion is to follow God's plan through his son, Jesus, and keep it simple with common sense. Forgiveness is for all, not just a chosen few. In God I trust.