That's not the question, if the things we have in common with the chimpanzee indicate common ancestry (homology argument), do differences indicate independent lineage? In other words, is the inverse logic intuitively obvious?
Well, not a
completely different lineage. But, yes, our ancestors definitely diverged from the chimp's ancestors. We are
cousins to chimpanzees, not direct descendants of them. This is what the morphology and genetics evidence tells us.
Case in point, the old saw that we are 98% the same in our DNA as the Chimpanzee has been conclusively proven to be false. It's 96% at best by the latest and most extensive genomic comparisons:
So? 96% still puts us firmly in the same phylum, class, order, and family as chimps. That how phylogenetic taxonomy works...
We have less is common with bonobo apes than chimpanzess, and less in common with cats than other apes, and less in common with cows than we have with cats, and less in common with mice than we have with cows, and less in common with fruit flies than we have with cows, and less in common with
bananas as we have with fruit flies!
Gene Cuisine: Human DNA similarities to chimps and bananas, what does it mean?
These genetic findings fit perfectly with what we find in the fossil record. That is to say that we never find fossils of ape ancestors below cat ancestors or cow ancestors below mice ancestors and so on...
To me, this evidence is undeniable. It's one thing if we just looked at the surface similarities/differences and then guessed at how we should classify stuff.
I'll concede that to you! It might just be a huge coincidence that everything fits perfectly on a branching tree of life when we just examine the morphological traits! Fine!
You win!
But when modern genetics AND the fossil record unequivocally match the predictions we make from taxonomy, I don't know how you can deny it.
So when the size and number of the differences in the chimp/human DNA double the mutation rate since the common ancestor doubles right?
I'm not sure about all that... I don't feel like I have to discuss the complicated genetic stuff with you right now. I just woke up!
Besides, I can prove my point by just using basic knowledge of taxonomy, paleontology, and genetics without having to dive down into the nitty-gritty stuff.
Now, pay attention because we are not talking about Firebirds here, we are talking about mutation rates with devastating disease, disorder and death a likely and common result:
If the mutation rate needed for the differences at 1.3% high rate is difficult to reconcile with multiplicative fitness effects of individual mutations, what happens when it is found to be over three times that?
In other words, if the homology argument that we have so much in common with the chimpanzee that it strongly supports common ancestry. Then, when the differences are so great that the effect on fitness is too high, does that indicate evidence for independent creation?
Again, you are getting down into complicated genetic stuff and we don't even need to go there.
I don't think you are aware of the many mechanisms available that can remove deleterious mutations from a gene pool.
You seem to think that negative mutations just keep building up but this just doesn't happen.
One mechanism is even mentioned by God. "male and female"
Evolution of sexual reproduction - Wikipedia, the free encyclopedia
In nature, severely mutated individuals often reproduce less and thus keep the gene pool clean of their mutations.
Even today this happens. How many severely genetically handicapped people do you know that have a lot of kids?
Even if they survive they don't reproduce much. This actually helps refresh the gene pool.
Think carefully about that one because evolutionists have no answer for this. It is devastating for the assumption of universal common ancestry when the truth sets in so consider carefully the implications.
They probably don't have an answer because it's a non-issue. You are creating a false dilemma because of your faulty assumptions of how population genetics works.
Unless I'm mistaken but I just don't see the point you are trying to make here. Why don't we just stick to the basic questions first. If we can come to an agreement with those, then we can move on to the complicated stuff.
For example, I still haven't heard a good explanation for the perfect temporal stratification of fossils in the geologic column if we assume evolution doesn't work.