Is white privilege real? To what extent?

[Mister Agenda]

Why should "we", reference any colour when most, if not all of us have subscribed to Darwins theory of there being only one race, and not 6 or 8, just as Carl Linnaeus proposed?

Biologically speaking, a race is a regional variation within a species. The human species has those. There seem to be a lot of people using 'race' and 'species' interchangeably. They're not actually interchangeable. The regional differences among humans are superficial, not nonexistent.