[antillean]

> I mean why should a black person from the US have access to different locations than a black person from Nigeria? Or why should a white person from France have access to different locations than a white person from Ukraine?

Because "the US" and "Nigeria" and "France" and "Ukraine" are political communities that have set up rules about membership in those communities and access to the territory and property of those communities, and while some of those rules are no doubt unjust -- the strong British and French preference for their wealthy, mostly white European neighbours over their poor, mostly non-white former colonial subjects being two examples -- justice probably allows these communities quite a lot of this kind of space in making these rules.