I just thank God that I am not the one who has to make that call.
It is God's place to judge not mine.
In general about sin.
Somewhere in the Letters of John, if one is living a sinful lifestyle of any kind without repentance they do not know Jesus.
1 Corinthians 5:12-13 It is not my business to judge those who are not part of the group of believers. God will judge them, but you must judge those who are part of your group. The Scriptures say, “Make the evil person leave your group.”
1 John 3:6 Expanded Bible (EXB)
6 So anyone who ·lives [abides; remains] in ·Christ [L him] does not ·go on sinning [or sin; C the Christian ideal, an implicit call to avoid sin]. Anyone who ·goes on sinning [or sins] has ·never really understood Christ and has never known him [L neither seen him nor known him].
1 John 3:6 Amplified Bible (AMP)
6 No one who abides in Him [who remains united in fellowship with Him—deliberately, knowingly, and habitually] practices sin. No one who habitually sins has seen Him or known Him.
1 John 3:6 Easy-to-Read Version (ERV)
6 So whoever lives in Christ does not continue to sin. If they continue to sin, they have never really understood Christ and have never known him.
1 John 3:6 J.B. Phillips New Testament (PHILLIPS)
Conduct will show who is a man’s spiritual father
4-6 Everyone who commits sin breaks God’s law, for that is what sin is, by definition—a breaking of God’s law. You know, moreover, that Christ became man for the purpose of removing sin, and he himself was quite free from sin. The man who lives “in Christ” does not habitually sin. The regular sinner has never seen or known him.
1 John 3:6 The Message (MSG)
4-6 All who indulge in a sinful life are dangerously lawless, for sin is a major disruption of God’s order. Surely you know that Christ showed up in order to get rid of sin. There is no sin in him, and sin is not part of his program. No one who lives deeply in Christ makes a practice of sin. None of those who do practice sin have taken a good look at Christ. They’ve got him all backward.