[atlaw]

There are a number of kinds of corn; but, whether there are multiple species is something else altogether. There are differences between dogs, they are all dogs.

I'm with you. For example, there are a number of kinds of primates, but they're all just primates. Lemurs, monkeys, gibbons, orangutans, gorillas, chimpanzees, humans -- call 'em whatever you want. They're primates, plain and simple, and no amount of fancy footwork can change that. Right?

[Havoc]

You haven't established that. You'd like to.
Humans have variation in their group, Chimps have variation, Orangs have variation, etc. Each is still what it is within the variation available via genetics. If you want to categorize above that level, it changes nothing. You still are held to a burden of proof which thus far you've not met.
Continue... lol