Hello my friend,
Your writing style impressed me, but some of your assumptions also seem wrong, like 20 billion population is too much, currently there are around 8 billion, by the time there are 20, perhaps our knowledgeable scientists will find some other place to live. And let me tell you that test tube babies are not soulless. In this method, only the man's sperm is injected into the woman's ovary. And all the other processes are absolutely normal.
Thank you, I wish you victory.