Romans 1:
"Therefore, God, in keeping with the desires of their hearts, gave them up to uncleanness, so that their bodies might be dishonored among them. 25 They exchanged the truth of God for the lie and venerated and rendered sacred service to the creation rather than the Creator, who is praised forever. Amen. 26 That is why God gave them over to disgraceful sexual passion, for their females changed the natural use of themselves into one contrary to nature; 27 likewise also the males left the natural use of the female and became violently inflamed in their lust toward one another, males with males, working what is obscene and receiving in themselves the full penalty, which was due for their error."
Paul does not mince words here.....both gay and lesbian sex is considered disgraceful....an obscenity. Males though were singled out because the seed of life is treated with disrespect. It was intended to be deposited in only one place. Anything else is against nature.
No human abnormality is a sin. The word in simple terms means "imperfection"....its an archery term meaning to "miss the mark".....there are two kinds of sin in the Bible....one we are born with.....a propensity to do, think and say the wrong things....and the one we commit deliberately, knowing that it is wrong, but doing it anyway. We can't help the first kind and that is not held against us if we simply implement God's commands and keep ourselves in control of our actions....because it is our actions that condemn us, not our sinful nature.
God forbids immorality...no matter what gender we are, or who we commit it with. Sex outside of scriptural marriage breaks God's law. Sex is not just for pleasure...its primary function is for making babies. The fact that it joins two people as "one flesh" means that the sanctity of life is protected in a committed union between a man and a woman in a relationship sanctioned by God to transmit life to the next generation....in a family.
There is no 'hatred' and there should be no discrimination towards any person for things they have no control over or cannot help.....if we are born that way, God knows, and if we try to exercise self-control, we will suffer no condemnation...actually we will be commended for the strength of character that we display....putting God's will before our own.....but you have to love him more than you love yourself or anyone else. Once you get to know him...its not hard at all.