Matthew 19:3
He (Jesus) answered, ‘Have you not read that the one who made them at the beginning “made them male and female” [Genesis 1:27], and said, “For this reason a man shall leave his father and mother and be joined to his wife, and the two shall become one flesh” [Genesis 2:24]? So they are no longer two, but one flesh. Therefore what God has joined together, let no one separate.’
While the answer by Jesus was on a question related to divorce, he was specific about marriage being between male and female. No reference to a man leaving his father/mother and joining his husband or a wife joining her wife.
1 Corinthians 6:9-10
Or do you not know that the unrighteous will not inherit the kingdom of God? Do not be deceived: neither the sexually immoral, nor idolaters, nor adulterers, nor men who practice homosexuality, nor thieves, nor the greedy, nor drunkards, nor revilers, nor swindlers will inherit the kingdom of God.
God, with places like Sodom and Gomorrah, actually did what Leviticus said. Perhaps you didn't see the punishment indicated at the end of the 1 Corinthian verses. What man could do doesn't come close to the punishment of being eternally separated from God for your choice to be a fag.