Sanctioning gay marriage is a huge mistake. I say this with no ill will toward anyone.
God’s moral laws cannot be repealed or amended. They are what they are. When we pass societal laws outlawing murder, stealing, and fraud, we are acting consistent with God’s laws and sanctioning what is right.
When we pass laws which support homosexual marriage, however, we are enacting human law that contradicts God’s law. We are sanctioning what is wrong. This will not bring blessing on gay people.
We in society have a duty to each other to stand up for what is right. Marriage between a man and a woman is right and anything else is a perversion of it. Not only is it a perversion, it is a slap in the face of God who gave us His laws for our good and protection.
You are doing no favor to gay people to sanction gay marriage. Instead, you should love them enough to , in essence, say, “I am not going to aid and abet your wrongdoing by saying what you’re doing is right.”
The plight of homosexuals is difficult. We should not make things worse for them, and encourage others to join them in those difficulties, by calling something a marriage when it clearly is not.