Homosexuality is a sin?

Actually the earlier version of the Bible did not mentioned anything about homosexuality before , not until the newer version of translations , which clearly states that homosexuality is now a sin according to the Bible . It's unbelievable , that how the fact of the Bible could easily change over time ? It's really heart-wrecking to know that , if you're a Christian and a God-living person , and the same time a born homosexual guy . And I was having fears with those will anointed and powerful pastors , when it comes to a topic like homosexuality , they simply just tell us that is a sin , something abnormal and worse yet to come . It's like a father that loves you so much , making that kind of judgement to you . Like why are homosexual people born to be discriminate ? I personally do not have a proper answer for this question , cause I'm a struggling bisexual Christian too .