I usually do not mention race when framing immigration controls as the international equivalent of (former) South African Apartheid — race lies on the South African side of the analogy. But the case of those opposing unfettered ability of all to move, live and work anywhere on earth without respect to nationality is not helped by the fact that race and racism is part and parcel of controls on movement, residency and work, as explained by The Guardian’s Gary Younge in The west persists in using race to decide who can cross its borders:

[W]hen translated into sterling, the mean income of a black Canadian is almost double that of a white South African. Yet a black Canadian is four times more likely to be stopped than a white South African.

Via Mark Brady.