I’m very curious where the quote you cite, “all whites are implicitly biased against blacks,” comes from. I can’t find anything like that, attributed to Sharpton or anyone else. Implicit bias is universal because we simply make judgments, good and bad, based on superficial things like race, appearance, perceived class even where we see people in unexpected places—generally without being aware that we are doing so. People who ardently reject racism or are even of the same race are entirely capable of implicit bias. Even if you are inclined—or maybe especially if you are inclined—to reject the concept, it’s worth at least trying to understand it. You might learn something about the way the brain works and how it plays tricks on us. Here’s a helpful rundown. https://www.google.com/amp/s/www.vox.com/platform/amp/2014/12/26/7443979/racism-implicit-racial-bias