As a White social worker and just as a human, I work hard to push back at the implicit bias I have, largely for how I've been socialized and growing up in a predominantly white world. I watch what books and authors I read, what media I consume, the ways in which I react with people, etc. The implicit bias shows me that even after all that work, I still harbor feelings of preference to White people. This just is. But it's something I need to work every day to dismantle. It's so easy to just sit aside and not think about it, but that is a part of white privilege -- choosing how to engage in a conversation that matters because it makes you uncomfortable.
Perhaps one of the most mind-opening things I learned recently was that White people tend to view racism as some sort of morality marker. And racism is explicit in the words you use, abuse of a person, etc. There is not knowledge of micro-agressions or that racism can be woven into us without our consent. This causes most White people to get highly offended when the topic of race comes up, when they may be called a racist (God forbid), or when challenged on what is the topic at hand. And I write this like I'm not also a White person.