1. Separates people from the Lord

   Let not sin therefore reign in your mortal body, that ye should obey it in the lusts thereof. Rom 6:12 To reign is to have dominion.     We are free from bondage and ought not to allow ourselves to come back under it.      Note that it says do not let sin reign in your mortal body.     It cannot reign in your spirit which is perfect.     Your body has not yet been redeemed.     It is corruptible.     If will one day put on incorruption.     At that time, it will be immune from sin.      But, at the moment, your body is mortal meaning it is subject to death.     So, you must mortify the lusts of the flesh in order to preserve it.     - Col 3:5

   The importance of the word reign in the above scripture cannot be over-stated.   It is a reality that Christians continue to fail the Lord (sin) from time to time.   The point of the above verse is that Christians may not allow sin to reign or have dominion in their lives.   This means that we may never elevate any sin to respectability or acceptance.   When a person elevates any sin to respectability they have de-facto removed Christ as Lord of their lives.   

2. Damages and divides society
   • The fabric of civilization is the family.   There is no possibility of a healthy family composed of LGBTQ members.   By definition they have rejected the authority of the Lord (see above).   If you can't put the Lord first you can't love your spouse properly.   They cannot procreate.   They can only convert/confuse/pollute adopted children.   
   • Division over definition of marriage.   
   • Division over access to restrooms.   
   • Division over the right of others to respond to their perversion.   
3. Destroys the individual

   Then when lust hath conceived, it bringeth forth sin: and sin, when it is finished, bringeth forth death. Jam 1:15 When flesh lusts and the mind submits, sin occurs resulting in death.

   Know ye not that the unrighteous shall not inherit the kingdom of heaven?     Be not deceived: neither fornicators, nor idolaters, nor adulterers, nor effeminate, nor abusers of themselves with mankind, 1Co 6:9 carnality stifles spirituality and robs a person of Abundant Life.     Rom 8:6 The specific sins of carnality enumerated in verses 9 and 10 all boil down to Self Worship which is the same sin that derailed lucifer.     The first commandment precludes Self Worship which is idolatry.

   Nor thieves, nor covetous, nor drunkards, nor revilers, nor extortioners, shall inherit the kingdom of heaven. 1Co 6:10 All of the above named sins have been forgiven by Christ Jesus through His shed blood.      However, the Spiritual Laws of the Lord are still in effect.     Specifically, 'the wages of sin is death'.     sin has consequences and those consequences are sickness, disease, strife, hatred, stress and death.      It is important to distinguish the sin of rebellion from the sins of the flesh.     The sin of rebellion is not forgiven or covered by the blood of Jesus.      The sin of rebellion must be dealt with by the individual who knowingly and wilfully repents of that rebellion and turns to Jesus Christ in faith and submission to Him.

   So we see from the above that when sin reigns in a person's life the end result is death and failure to enter the kingdom of the Lord.   

Sin is to be repudiated not accepted.   It is what cost Christ his life.   sex addictions of any type need to be broken.   The power of Christ is available to do that.   However, you can only be delivered when you really want to be.