Are you presuming the de-evolution is equivalent to the deterioration of a species, as opposed to merely a loss of some information instead of a gain in it?
Do you presume that loss of information makes for an inferior species as opposed to simply a different one?
The way to illustrate it is that you can eventually breed a poodle from two original wolves,
but you can’t breed “back” to a wolf from two poodles.
Why not?
And deterioration was the word used by the poster I was responding to - I don't buy into it for a second - just engaging using the language and explaining the consequences of the paradigm presented. Not that there is anything wrong with that! ;)
If all change is “de-evolutionary” and a “deterioration” caused by sin in the world - well the evidence is that Norther Europeans, with non working copies of dark skin genes - are more visibly “deteriorated” than Africans - and if there is a perfect condition of humanity as designed by God - that condition is black skin.