I am just pointing out Natural Law Theory. Biology always has a meaning and hormones and bonding with one’s own baby is natural. To disregard the proof and science of Nature is a lie-—and by trying to destroy the meaning of the laws of nature are evil-—as homosexual promotion does. God designed a perfect system to bring up a baby-—with their biological parents doing their DUTY which is part of the laws of nature—to have a “flourishing life”.
Now, I am not saying that non biological people can’t be good Christians and love other people’s children as their own. They CAN and DO and some of my favorite people are people like Father Flanagan. I would argue that only true Christians could love in that manner-—because it is only when you love God, that you can truly love yourself and therefore, others. Christianity teaches selflessness which is necessary for bringing up children.
There are adoptive parents that have been extremely cruel to their offspring—but they were never true Christians, were they.
While no one will argue the truth of that statement, one would be foolish to presume, and ignore just how historically fragile that bond can be.