It's easy to be confused when you keep changing your definitions when they're not consistent!
"is that "white" isn't an ethnic group with an actual cultural or racial lineage".
"The reason this group is unique as an ethnicity w.r.t. recategorization is because the structure and violence of slavery isolated them from historic ethnicities and forcefully regrouped them under a new one."
Conflicting statements.
According to you white people don't have historic ethnicities but black people also don't because of slavery and that is why they deserve capitalization?
"is that "white" isn't an ethnic group with an actual cultural or racial lineage".
"The reason this group is unique as an ethnicity w.r.t. recategorization is because the structure and violence of slavery isolated them from historic ethnicities and forcefully regrouped them under a new one."
Conflicting statements.
According to you white people don't have historic ethnicities but black people also don't because of slavery and that is why they deserve capitalization?