I know you’re right. The tragedy and crime of slavery made black people the only ones who didn’t come willingly to look for a new and better life. No slave traders wanted individuality for the victims by matching names and genealogies.
I don’t remember the movie name (I saw the preview in a theater in probably 1971 or 1972) but it had a black man confidently saying in NYC “Every black person I see go past me I can match their facial looks to their tribe back in Africa.”
There were White indentured servants whose descendants probably can’t find records, either.