What's the nicest thing you can say to a homosexual?
Jesus loves you (Jn 3:16). Jesus is willing to save you (2 Pe 3:9). Repent (Eze 18:30-32; Ac 17:30). Believe (Mk 9:23).
Response to comment [from a Christian]: "[L]aws were not abrogated...it will always be a sin to murder someone."
That's right. We've moved from the letter of the law written in stone to the spirit of the law written on our hearts (2 Cor 3:3).
Response to comment [from a "Christian"]: "Christians are to act out of love, not by following rules. Period."
That is a higher standard not lower (1 Pe 1:22).