[muir_redwoods]

DNA is exactly what says I'm right. We are one race and we have many ethnicities which are shifting conventions at best. We all have bits of virtually every ethnicity out there and there is not a person alive who can vouch for his great, great grandmothers morals. No one knows his own ethnic make up with certainty. One might present characteristics of a caucasian Eurpoean but that appearance doesn't tell the whole story by a long shot. By what standard would a "Race" exist?

It's been centuries since populations were sufficiently isolated in any significant numbers to be called "ethnically pure" whatever that might mean.

[Wonder Warthog]

"It's been centuries since populations were sufficiently isolated in any significant numbers to be called "ethnically pure" whatever that might mean.",

No, DNA is what proves you wrong. A single race would be genetically more homogeneous as compared to the wide variance of humanity today.

We are on our way to that single-race state, but we are a LONG way from reaching it.