That is the wild speculation and unfounded opinion.
Everything that man touches is corrupted. There is nothing on this earth that is not under the Curse, and that includes infants. There is no such thing as "innocence." That was taken away at the Fall. Even the whole creation: "that innocent lamb," that innocent seal," etc. Ask PETA about all the "innocent" animals. There is nothing innocent. Everything is corrupted. All is under the curse directly related to Adam's sin.
Indeed, as we are ALL in Adam, that the fall made us fallen and sinful creatures! God imputed the Sin of Adam to us all, and we are in original sin!
Paul starts with a wonderful promise of the resurrection:
For I reckon that the sufferings of this present time are not worthy to be compared with the glory which shall be revealed in us. (Romans 8:18)
--Our bodies are corrupted. They have been since the day they were born--both spiritually and physically. There is nothing innocent about them. As believers we wait for that day when Christ comes, when we will suffer no longer.
For the earnest expectation of the creature waiteth for the manifestation of the sons of God. (Romans 8:19)
The word "creature" means "creation". All of creation waits for this same day--when the curse will be lifted; when the Millennial Kingdom will begin.
The WEB puts it this way:
For the creation waits with eager expectation for the children of God to be revealed. (Romans 8:19)
--God's creation cannot wait, so to speak, when we as believers will inhabit the earth, and the curse will be lifted. As for now the entire creation lives under a curse--including infants.
For the creature was made subject to vanity, not willingly, but by reason of him who hath subjected the same in hope, (Romans 8:20)
For the creation was subjected to vanity, not of its own will, but because of him who subjected it, in hope (Romans 8:20) WEB:
--The creation has been subjected to the curse, not of its own will, but because of Adam's sin. It is God that caused it to be this way. Before Adam sinned everything was in perfect harmony. Man never had any problem with mosquitoes. The lamb could lie near to the lion. But after Adam sinned, mosquitoes have been one of the worst nuisances man has ever encountered, being the cause of many diseases. The lion has become carnivorous, the hunter, and the lamb its prey. All of nature was thrown into disarray. It is under the curse.
Because the creature itself also shall be delivered from the bondage of corruption into the glorious liberty of the children of God. (Romans 8:21)
--Someday the creation will be delivered from the bondage of this corruption. Someday Jesus will come again. Someday the curse will be lifted. Someday, this creation will be released into the same liberty that we as believers will have in the Millennial Kingdom will have. Even the creation waits for it.
For we know that the whole creation groaneth and travaileth in pain together until now. (Romans 8:22)
--The entire creation groans, travails, is under the curse, even now. It will be until that curse is taken away when Jesus comes at the end of the Tribulation and takes away that curse. But now even the very creation of God is under the curse--babies of all sorts--animals and humans. Everything is under the curse. Nothing is innocent.
And not only they, but ourselves also, which have the firstfruits of the Spirit, even we ourselves groan within ourselves, waiting for the adoption, to wit, the redemption of our body. (Romans 8:23)
--Not only God's creation, but we also wait for our redemption. We wait until the curse be taken away. We wait for the redemption of our bodies. An infant is born corrupted, with a sin nature. He/she must wait for the redemption of their bodies. They are part of the creation of God. God cannot redeem a body without redeeming the soul and the spirit. In other words he must redeem the entire person. The entire person comes into this world corrupted, under the curse. There is no such thing as innocence in this word. To say so is just pure emotional sentimentality.