Trilobye wrote:
"Kinds do not equal species. The closest comparism would be something like genera/family."
At least we've cleared that up to some extent. Of course this opens another can of worms for you but we can safely leave that for now.
But you have often said yourself that many mutations are harmful. Therefore you already accept that unless a mutation provides an advantage for any members of a poulation with it it will remain at a low level in that population. Genes that are selected for lead to rapid change in a population, as we know from plant and animal breeding. The confusion you have seems to stem from the fact you don't understand that it is the environment that leads to evolution, not some mysterious force that demends change for change's sake.
Regarding the species you mention that survived the K/T extinction. You should have noticed they were all far from the inpact point of the meteor. Extinction was most severe in North America and Europe. Hope this explains any misunderstanding you have.
