Yeah there are definitely experiences that I believe are unique to black culture. But that comes as a result of environmental influences, not biological. The black race is a biological component. Our features, our hair, our body types, our family all pay homage to the fact that we originate from one lineage. From there we associate with those who look like us (natural human behavior), and we form communities and environments of those who are like us physically. Then as time goes on, we become more like each other behaviorally. Now as a black child who is born into this world, same things happens. You see others with your features, skin color, hair type, and you naturally associate yourself with them. As time goes on, you see these people growing up in the same type of hood you're in, with the same familial and financial situations - issues that hit closer to your heart. And you develop a deep relationship with the community. Y'all even listen to the same type of music, watch the same shows, eat the same food. Your parents even cook it the same way!!
Now there are people whose journey is the opposite - the environmental component comes first. A white child born into this world, who sees people growing up in the same type of hood, with same financial or family issues. You like the same music and food. They are a part of the community they've been in since birth. Can we now classify them as black? We say it in informal convos, like they're "black" referencing their relationship with the black community. But since race is a bio component, that cannot be changed. They are classified as white because race doesn't care what your upbringing is.