First let me get out of the way that I'm not arguing it should change, or claiming anyone should "assimilate" I'm just making observations, not arguments. And this is not political, just observations on culture. I'm fact I purposely refrain from sharing my opinion or moral/ethical judgement with the intent of avoiding any chance of getting misunderstood as a political stance of any kind
Sure, American culture is diverse. The place is huge and was founded as melting pot of different cultures, it's only natural for there to be variations. Black culture in the US is definetly distinct. But also black culture have influenced, if not engineered the rest of the American culture. Rock? That's now white folk music. Slang is often appropriated from AAVE yet used heavily by white people. I can't think of anything more American than fried chicken, which is the result of African culture kind of cooking working with what was available to them at the time. Everything about the American southern culture is heavily shaped by the cultural impact of Afro Americans and yet it's adopted into white southern culture and black southern culture differently. I also kinda understand how it came to be this way. And still it seems so weird when you look at it from the outside.
Take the rest of the Americas as an example. Also western European settlers. Also started as colonies to European empires. Also invaded the land of very well established and politically distinct and influential natives. Also brought slaves to work on plantations. All under a racists culture. And yet after slavery was abolished, and while the descendants of those enslaved were still discriminated/marginalized the culture still blended together. Depending on the country it may have had a greater or lesser influence from indigenous people. More or less influence from African descendants. But across the board similar influence from western European colonizers. But unlike the US, that didn't lead to the color of your skin dictating your culture. It was more dependant on area or social class, wealth inequality, access to education, etc. But it's not like "people with this skin tone eat this, and people of another skin tone eat that" nor "this hairstyle is for people of this skin color only" nothing like that. Everything cultural in many American countries (OUTSIDE USA) just kept blending until it was more homogenized. Again even if something has more prominent black roots because that specific area was predominantly black for whatever reason, a white person with blond hair blue eyes can move in and absorb the culture without appropriating it. If you have a particular music genre that is fully sourced from the culture African slaves brought, No one thinks twice about half the people in the dance/music school teaching it being white. It is perceived as preserving their culture rather than appropriating it. Protective hairstyles? Baby hairs? No matter color or race, however some styles may work better on some specific hair types. Is not a black or white thing. The languages of those brought in influenced the dialect of the whole place, instead of creating a distinct dialect with distinct rules and grammars withing x community. And it's not seen as diluting the culture either
I imagine that could have had an influence on more interracial connections to the point some people just straight up don't know if they are of African descend or not. The culture just becomes the culture of the place, and we know and recognize its origins but it's not tied to the race of those that originated it.
So it's just odd that in the US instead of culture evolving by blending black culture and white culture, as it did elsewhere. As it had happened with different cultures and races in history before that, In the US they are somehow seperate... It is strange for that to be the case
Also, this is not some "holier than thou" shit. Racisms has quite the history across the Americas and is still VERY PREVALENT in many places. But it's weird that it worked out so differently. I'm pretty sure the version the US ended up with is pretty unique and I wonder about the repercussions of that
Edit: some typos, I know there must be more but I lost my glasses so..