reality:
"In short — we have no clear idea about the murder rate on South African farms, and because of that, the claim being made by protesters about farmers being more likely to be murdered is not supported by reliable data."
https://www.bbc.com/news/world-africa-41807642
the anti-defamation league agrees with me:
"It is extremely disturbing that the President of the United States echoed a longstanding and false white supremacist claim that South Africa's white farmers are targets of large-scale, racially motivated killings by South Africa's black majority," the anti-hate advocacy organization said, noting that prominent white supremacists such as Richard Spencer have espoused the claim.
"We would hope that the President would try to understand the facts and realities of the situation in South Africa, rather than repeat disturbing, racially divisive talking points used most frequently by white supremacists."
the Southern Poverty Law center agrees with me:
The Southern Poverty Law Center, a group that tracks hate crimes, also identified the claim as "a lodestar for white supremacist groups at home and abroad."