One approach that could HELP to delineate the concepts you're illustrating might be if we begin routinely capitalizing "White" when using it to refer to European-based racial/ethnic heritage per se...while keeping the word "whiteness" in all lowercase, when referring to the privileges/advantages currently associated with paler skin in relation to the systemic roles of racism and colorism/shadeism.

This might seem like a very tiny adjustment, and it certainly isn't the end-all-or-be-all of clarifying the purpose of antiracism. But it would be a start.