God hates all sin. In Leviticus 18, God lists 12 ways that we are not to commit family sexual sins (incest). When God gets to verse 22 (one verse), He says lying with a man as with a woman is an abomination. Where does God say, "And now the WORST of these sins is homosexuality?"
Homosexual sex is an abomination but so is all sexual immorality. When you advance your own agenda against a specific sin, you appear to be excusing other sins.