24 Therefore God gave them over in the sinful desires of their hearts to sexual impurity for the degrading of their bodies with one another. 25 They exchanged the truth about God for a lie, and worshiped and served created things rather than the Creator—who is forever praised. Amen.
26 Because of this, God gave them over to shameful lusts. Even their women exchanged natural sexual relations for unnatural ones. 27 In the same way the men also abandoned natural relations with women and were inflamed with lust for one another. Men committed shameful acts with other men, and received in themselves the due penalty for their error.
(Romans 1:24-27)
The Bible outright states that homosexuality is sinful. We are meant to love one another, yes, but we aren't meant to tolerate sin. If you don't believe in the Bible or the Christian God, I won't judge you for homosexuality or the like, because you don't care, but you cannot use the Bible to excuse homosexuality as not sinful. You simply can't.
