What I was trying to show was that you can get variation even in the absence of microevolution, the two are not necessarily linked. So the genes I mentioned would likely have the same sequences in all the original created kinds since they perform the same function.
But as the parent populations (the original kinds) they would accumulate errors during replication which will be neutral as they do not change the proteins (neutral mutations) and as the parent population split into subsequent daughter populations they would carry these neutral mutations with them like a parent to a child (which is what I meant with familial relationship of variation).
If all the original kinds were created separately then each would be experiencing it’s own set of neutral mutations, so for example you wouldn’t expect humans and chimps to have less variation than chimps and gorillas. But of course that is exactly what we do see, which allows us to put humans, chimps, gorillas and other apes into the same family tree.
None of this deals with evolution itself, but I’ll try to tackle that in a follow up post. Will wait to see your reply to this post first.