I don't have a problem with this.Anyone with homosexual tendencies (or an inclination to other decencies)who choose to obey the 7th Commandment are worthy of the opportunity to achieve salvation.
How about just quoting Leviticus 18.22 and letting that speak for itself?
By the Catholic counting of the Ten Commandments, the prohibition of adultery is the 6th commandment, not the 7th, and "thou shalt not covet thy neighbor's wife" is the 9th commandment (covering "impure thoughts" and the like).