I do agree with this. This is why I choose to continue to embrace the word nappy (and Mulatto) as well as my nappy texture. It's never the label or phenotype which many people get confused about and try to hide from their blackness by other labels or skin bleaching/hair straightening (which is apparently common in some countries). As Dumbledore would say "Fear of a word only increases fear of the thing itself".
I certainly didn't mean to imply that
calling myself Multiracial is about "not facing my Blackness" and I think that's another crux of our disagreement. I think of it as accepting who I am, just like the people who choose the label Black, if accepting who I am does have societal repercussions that shouldn't be mine or anybody's responsiblity.
And FOR ME, accepting Multiracial, once I evaluated and added up my life experiences, IS accepting the thing about myself people have told me is ugliest (or my Mixedness worsened the blow for whatever reason if they were hating on my Blackness). And I imagine it's the same for others.
I do hear what you are saying. "If someone sees the person they have been talking to is that angry Black woman but they didn't know it and they were interacting with that person this whole time" they might have to rethink their racism. I disagree becuase I don't think that "The Angry Black Woman" stereotype is about looks/labels, it's about the racism. And racism exists beyond phenotypes. I have known people who just mentally attributed Mixed people's (or Black people for that matter) "goodness" to their Whiteness. I once heard someone trying to estimate how much White blood Michelle Obama had in her and ending up the result that it must be a lot becuase of how educated she is and she in no way identifies as Multiracial or Non-Black or looks "non-Black". But of course the instant she acts up (if she does so) she is back to being an "Angry Black woman". People have all kind of crazy ideas and stereotypes associated with what being Black or part Black means (in some countries it's about being poor, not skin color) I can't allow it to stop me from being who I am and calling myself so. It's certainly tempting to be able to say "I'm Black" when people attribute my hair growth to my mixedness and see their jaw drop but that's their ignorance and I shouldn't have to pander to it. And that's where I am coming from.
Again I don't think the burden should be put on people's identity to erase racism, just like there are people who expect Biracials are going to bridge the gap between Whites and Blacks. I don't put that burden on them, they are just who they are. If people choose to see them and realize it's possible to be Black AND White simultaneously than that's cool and thus realize race doesn't exist, if they choose to dedicate their lives to using their duality to mediate between Blacks and Whites, that's their choice. But it shouldn't be what their identity is for, their identity is who they are.
I can see how that would be your take on what Multiracial people are trying to do seeing as how you are coming from the view of what a Multiracial identity will affect Blacks or the Black community.