"...the theory, is that, given enough millennia todays child could be the distant ancestor of a completely different creature via countless imperceptable changes!?"

Yes! You've got it!

"...either way unproven, so a faith position."

Not true. There are many, many directly observed, documented, peer-reviewed, and most importantly *predictive* examples involving multiple completely idependent lines of evidence.

Now you will demand them (but there are too many to even begin), and why bother because you will deny them all (by definition - because you hold a faith position).

But it is encouraging that you at least understand the theory that you refuse to even consider.