To be clear: I think it's unconscionable to conceive a child while there are un-adopted ones, even if it's your first and guaranteed to be healthy.
There are perfectly good babies out there that need love and care, and by making your own you are basically saying "fuck them, the one that shares my DNA is better".
Do you have children? Do you have a good relationship with your parents?
I don't think it's unreasonable to assume that my kids will turn out to have traits that I liked in me and my parents. Just because of that, I would rather conceive.
Nobody has any idea how your kids will turn out - we have even less control over this than over how our marriages will turn out. But best of luck to you.
> There are perfectly good babies out there that need love and care, and by making your own you are basically saying "fuck them, the one that shares my DNA is better".
Or to phrase it another way, they're behaving the way animal species have for millions of years.
I used to feel that way when I was young. Sadly there really is no way to explain it to you until you want / have your own. If you still feel like adopting at that time then that's great, well done. But I would caution you against defining people having children as being 'unconscionable' as it won't help you make your point.