Human race doesn't exist, races are a subdivision of species.
You have human species and human races, that's a scientifically proven fact (but you wish it was put under the rug).
I don't see what's the problem with humans being of different races.
"Scientifically proven", since when?
Race is a mere concept, there is a consensus among respected scientists that race is not a useful classifications tool... this is common knowledge
The definition of Race is .."each of the major divisions of humankind, having distinct physical characteristics."... the focus of race is purely physical and thus shuns the dozens of other factors that make us all Human
These race-rows serve only to divide everyone and cast a smoke screen over what the true issues are.
Yes, races are a bullshit classification.
However, if you want to be scientific, we are various blends of multiples species (with Homo sapien sapiens being the dominant species). But, Europeans have a small amount (~2-4%) Homo neanderthalensis blended with that Homo sapien sapien. Asians have a higher amount of Homo neanderthalensis (3-6 or 7%). Then, some Pacific Islanders and Aboriginal Australians have an addition of Homo denisovan (or Homo sapien denisovan...very closely related, so may be a sub species rather than separate species).
There is no reason to deny that people around the world are different, and have different ancestry. It is only an issue when individuals use that to judge others, or claim superiority.
However, as a white man, I like to point out to racist white people that, truly, the PURE bred Homo sapien sapiens are those with 100% African ancestry. They are the only people that have 100% Homo sapien sapien ancestry.
I embrace my inner Neanderthal! They were not inferior to Homo sapien sapiens either, in modern terms. Just needed slightly higher caloric intake, and were possibly lacking in vocal ability.