Talk about "spilling one's seed" with impunity.
This is what happens when those babies who were conceived by sperm donors grow up and find out the truth.
This is a process that is sometimes embarked upon by selfish-disguised-as-loving unmarried women who are desperate to have a child, and damn whatever consequences may come. Along with donor children feeling emotionally wrecked by this information, what about the non-biological fathers/husbands who raise one of these children? Knowing that their child is not really THEIR child has got to be heartbreaking.
This is not the way God intended a family to be!