First of all I would like to say that, I don't hate, dislike, nor mistreat anyone because of the sin that they are enslaved to, for we are all born under the same condition which is to rebel against our creator. Once we enter this world the rebellion starts. We don't have to be taught how to be disobedient (do what's wrong), we have to be instructed to not be disobedient (do what's right). for instance, you take a one year old freshly walking, mom tells them, "hey, don't go into that cookie jar." Kid does it anyway, has cookie crumbs all over his/her face. Mom sees kid and says, "Did u go in that cookie jar after I told you not to?" And what does the kid do? Lie. We all have experienced this. We all rebel against righteousness because we've been conditioned to do so. We all are wicked, but just to different degrees. Some aren't as wicked as they could be, while others maximize their wickedness. If you we're foreknown because you were predestined by God to be one day be called and then conformed to the image of his son, Jesus the Christ (Romans 8:28-30), you get to finally have eyes that can see and ears that can hear the truth about how Christ came down and was cursed so that many could one day walk in truth and be free from the wrath of God for their rebellion. When you get this truth, it causes you to repent for your rebellion and turn to God.
Homosexuals are just like everyone else and are enslaved by their sin, and because some have had feeling for the same sex ever since they can remember, they believe that they were born that way, when truthfully they weren't born homosexual; they were just born into sin. Some people have been liars, thieves, coveters, and everything else under the sun since they were little, but it doesn't mean that they were born that way. D The reason why so many marriages end in divorce is because one, people get married for the wrong reasons. Two, people don't have a clue what love is, which we find here in 1 Corinthians 13:4-13 which basically explains how love is patient, kind, long suffering, not arrogant, doesn't keep account of the others transgressions against them, rejoices in the truth and so on. So that is our standard of what love is truly is, though most don't live according to that standard. So when the married couple starts going through trials, or a person feels as though their needs aren't being met, they are quick to quit and give up. Why, because peoples hard hearts which are selfish and all about them. Selfishness is the #1 cause of divorce. Most people don't marry for love which means to give of yourself wholeheartedly and be selfless, and for the husband, be willing to lay down your life for your wife (this being the highest form of love), they marry because the person looks good, or because we got all this in common, or because of feelings, or sex, and many other superficial things. trust me, the woman I plan on marrying doesn't make me happy all the time, we don't see eye to eye on everything, she don't always look the best, nor deserve my love, but If she'll have me I'll marry her, treat her as myself, and be willing to lay down my life if necessary for hers.
So just like most hetero people get married for the wrong things (ie lust of some sort) people of the same sex want to get married for the same reasons, lust. Most people including homosexuals don't love each other, they lust each other, that's why their marriages don't last, it was based on lust which kind of looked like love at one point but didn't have the commitment, long suffering, and selflessness that love has. Marriage is the one sacred thing that the Lord instituted on this earth that is a direct parallel to our relationship with him. We, the church (the people who have faith in Christ) are his bride, we did not earn his love, nor do we do much to keep it, if anything, he should divorce us, for even though we are not slaves to sin anymore and can actually obey God, we still sin at times. So he should divorce us, buttttt, he would not be a God of his word, and be weak for he can't even bear the sins of some humans, and if that's the case, we shouldn't serve him anyway cause he's a weak God. Same things pertain to human marriage; a man leaves his family to go hold fast to his bride, forsaking all other women. He is to love her regardless of the circumstance because of his covenant he made with God which is to death do you part. He should not divorce that woman, regardless of what she does. For just like we did nothing to neither earn nor keep gods love, sometimes your spouse might not do things to earn nor keep your love. But just as god is faithful to us even in our unfaithfulness, we are to do the same with our wife, even if she is unfaithful in whatever way to us. Marriage is between tow people of opposite sex, with a purpose mainly to be fruitful and multiply in numbers. You can not procreate with the same sex. You we're not given the organs to do so. And no matter how you want to shake it, even if you don't believe in God, creation still screams out and lets you know of the order of things (gods order) all other beings procreate with the opposite sex, only a sexual beings, those who can procreate with themselves don’t need the opposite sex. If we start arguing about the obvious truths of life and nature, then we have really become a debased people. Sorry for the long response. Hopefully this is light unto you and causes you to ask God questions. May the Lords spirit seize you!