Not sure I’m reading the same posts here.
God can take all of our experiences and use them for His good if we discern what His will is and are open to his guidance. I believe that my terrible experiences have made me a more compassionate and allowed me to help others who are hurting. Not saying I do it perfectly. We are all different. My husband’s father was there, but uninvolved. He has not been harmed by it, it just feels kind of “eh” (his words, not mine). He is, btw, a warm loving father.
What I’m seeing here, is that the OP is trying to discern what his moral responsibility it and ask what all the possibilities are:
How would it feel to be an parent, to adopt?
How would that play out, what would the day be like?
What should his role be?
What is his moral obligation, particularly to his wife and the marriage covenant?
Perhaps it would be better for people to blindly move forward without asking such important questions.

I’m humbled to see someone do such an examination of conscience more often.
We are all beautifully and wonderfully made, whatever form that takes and there are many ways in marriage to be fruitful. My dear friend was adopted by a couple, it was more of a status thing. The mother was cruel and abusive and the father was absent and completely uninvolved. She is one of the kindest, most loving people I know. That the world would be a better place if all prospective parents, especially adoptive parents, did the soul searching that the OP is doing. :clapping:
Heavenly Father,
continue to guide this man and this women
bring them closer together in love, drawn them into your safe arms while they navigate this confusing world.
Allow them to know what Your plan is to bring fruitfullness in their marriage,
whatever form that may take.
May each of them be open to Your Will
and at peace throughout their search for your Truth
in their life together.
May you bless them with riches from heaven;
joy, faith, peace, compassion, contentment, trust in eachother and trust in You.
In Jesus name,
Amen