Variation is true, not macroevolutionary speciation. I can't believe humans evolves from the same ancestors as chimps just because the DNA is similar. It is logically absurd. Here is the logical argument:
A is similar to B in Y. Therefore, A and B evolved from Z.
Huh? The conclusion does not follow the premise. Fallacy alert!
Oh, I might add that your atheistic view on this issue is wholly consistent with your secularistic view of law. What a surprise! It seems there is some consistency in the naturalist worldview, eh? We all begin with fundamental presupposition as to whether God exists or not - all other beliefs flow from that. One presupposition leads to another.
If you say that all life came from a proto-bacteria, you need to show me the evidence for this. Where are all of those transitional forms in the fossil record? How did life just spring up on its own? Do you know how complex a bacteria is, or even a single protein molecule? You take these to be fact on blind faith. There is zero evidence for them. The darwinists cite the same hackneyed examples over and over - peppered moth, fruit fly, etc.