Are you intentionally trying to be unreasonable?
People have recognized throughout that adoption is both for the benefit of the child and the parents who adopt. So, yes, permanence is an important factor for US citizens who adopt at least partially for their own benefit. Yet you want to take that benefit away from them even though you have yet to answer the question as to why international adoptions should be penalized in the first place. It's clearly not just about population control as you advocate for procreation. So what is it? Why don't you answer the question?
Adoption is a benefit that benefits both the family and the child. That fact that both are true does not take away from the other.
I say procreate because that seems too much trouble for some people, and so I benefit from their voluntary decision not to take the trouble to add to population.
As it stands right now, America has a slightly negative population growth except for immigrants, so absent immigration, we can accommodate a few more naturally born Americans.