You can breed a dog 100 different ways. In the end, you'll still have a dog.
100 ways? Yes, you'll probably still have a dog. But if you selectively breed for non-dogginess, and do it for enough successive generations, eventually you'll wind up with something that may be able to produce offspring with its brothers and sisters but not with other dogs. That's speciation and there's no reason to deny it exists other than religious conviction.
Why do you think housecats are so similar to lions and tigers? (After all, they're still cats, but just try breeding a male housecat with a lioness.) Did God say, "I think I'll create a whole bunch of stuff that's really similar because I'm too lazy to think of novel creatures"?
Edited by bernerbits, : No reason given.
Edited by bernerbits, : No reason given.
Edited by bernerbits, : No reason given.