What I understand of the situation at the moment:
SA parliament passed a bill to expropriate without compensation. In terms of what's actually occurred, I think all this means is that they've agreed to talk about it, and begin a long bureaucratic journey of law-passing.
The EFF, local populist radical party have been pushing for this to happen for some time, and the declining ANC has lost some minimal public support to them because of this. The ANC allowing for this to be tabled basically squashes the reason for people to vote EFF instead of ANC.
The ANC has heavily amended the version of the original EFF bill.
Even if this plan goes through, it just implies that some farmland will be taken. Not that anybody will be deported or that whites won't be allowed in South Africa. Racist whites have been pushing ridiculous narratives like this since before apartheid ended, spurred on especially by racist interpretations of the expropriation of land in Zimbabwe under Mugabe, but surprisingly also just the same kind of stuff you see everywhere (white genocide, etc.). Whiteness is so intense in South Africa that whites generally have no sense of what is happening outside of their white bubbles, so they fill that gap with a phantasmagoria of racist garbage. This is why many have left South Africa for English-speaking predominantly white countries for decades.
Currently farmland is in massive disproportion owned by whites. This is despite whites being about 8% of the population. The injustice is clear, even before the long and devastating talk about how the land was brutally wrenched from the peoples inhabiting it prior.
Further injustice is the whole idea of nationalisation of the land - not just for the obvious reason that people would need to trust the State with the land it takes, but because they've already failed at it, given that approximately 21% of South Africa is already state-owned, and the state has a whole lot they could have done already with that land to help people. This land seems conspicuously outside of the debate being had.
In the meanwhile, there have been remarkable movements like Abahlali BaseMjondolo, a landless people's movement that uses direct action to collectively move onto and occupy unused land. (because under capitalism in the postcolony, you can actually be landless in the place you are indigenous to)
Of course, South African state-capitalism has been out to murder and dispossess them (despite having what is considered perhaps the best national constitution in the world), and I'm regularly coming across news of Abahlali's members being intimidated, harassed and assassinated or homes being raided and taken apart by cops or the red ants.
It's unfortunate that groups like this don't then have the political support that the land expropriation bill has. Really there's so much that is bad about the distribution of power and ideology here I wouldn't know where to start. So I'll stop here, wondering what it would take to bring white South Africans to the point where they willingly give up the land, which, to me, seems the appropriate thing for them to do. Taking the land in the meanwhile will have to do.