As opposed to jumping at the first reasonable sounding justification for why we should all just go ahead and service homosexual weddings, even if our religion tells us we should not.
The problem is, I don’t think you are going to find any Biblical justification for this view. We don’t judge non-believers by the standard of being believers, and it appears that these are people suffering under God’s judgment in this life (while there is still time to repent). If we behave as Christians should, one of two things will happen: either we will contribute to God’s work in their lives, or they will come under greater condemnation for their hardness of heart.