There is no such thing as biological race. Race is a purely social construction. People are "white", not because of some imaginary gene or imaginary scientific classification, but because their skin is pale enough to be socially privileged.

So, while it's true that "white people" can never stop being "white" in the sense of social privilege, it is absolutely possible for pale skinned people to recognize that "whiteness" is a phony racist category and thus to disassociate and dis-identify with this completely unjust and irrational system.

The alternative that you're promoting is "race realism" which is discredited fascist/rascist pseudo-science.