I'm going to say this again - my white friends who aren't racists do not mind me talking about racism. If you find yourself disturbed by or uncomfortable with topics on racism, you may want to tell yourself some hard truths. And then, work on your findings. You may be racist.
Advice for white people, from white people
@Birgitomo this 💯
As a corollary, many white folks who have confronted racism in themselves will feel OK admitting that they probably are a little racist and that doesn't mean they are a terrible person, it just means there's more work to do.
Growing up in a white supremacist society leaves us all with a little bit of racism from our upbringings. Part of the real anti-racism work is acknowledging that internalized racism, working through the shame, resisting the urge to duck responsibility, and actively trying to recognize and counter it in one's daily life.
Once you get used to that type of self-reflection, listening to people describe their experiences of racism starts being an exercise in sympathy, solidarity, and learning. You stop reacting to discussions of racism as if they're scary personal attacks, or at least if that is your initial reaction you're prepared to deal with those negative feelings and recognize them as the byproduct of white supremacy, before dismissing them as unproductive.
TL:DR the OP is right, it's white people's job to deal with these hangups, and doing so is anti-racist 
Advice for white people, from white people
@AIF_Massachusetts @Birgitomo I feel like a big thing for me was realizing how much of my mental image of what racism looks like was built on stories and not real life experience. Sometimes totally fictional stories, and sometimes stories that are true but heavily edited and curated. That when we look at something suggested to be racist and think, no, that's not racist, it's because we're comparing it to what we think racism looks like. If we have only seen examples of racism that are, for example, large and malicious, we will reject instances of racism that are small and fueled by apathy as 'not proper racism'. Which is kind of like if you got all of your information about romantic love from Disney movies and expected real life couples to act in exactly the same way.
