Well, then. Seeing as how you can not explain how every single person, including the freshly born "has sinned" and that all you can do is plead the exhaustion of human reasoning, isn't it possible that the puzzle can be solved by recognizing that the statement you are making an idol of is, in fact, a general statement and not an absolute statement?
How do you know when to take Scripture as deadly literal as you are this passage and not some other passages?
SD