I'm not sure that being called a terrorist by PW Botha is all that meaningful.
'''Veto by President Reagan[edit] Reagan vetoed the compromised bill on September 26, calling it "economic warfare" and alleging that it would mostly hurt the impoverished black majority and lead to more civil strife.[10] He again offered to impose sanctions via executive order, while also working with Senate Republicans on concessions to avoid them overriding his veto. Reagan's veto was attacked harshly by anti-Apartheid leaders like Desmond Tutu who said Reagan would be "judged harshly by history".[11] In the week leading up to the subsequent vote, President Reagan enlisted South African foreign minister Pik Botha to call Republicans on the fence, though this was seen to backfire.[12] Veto override[edit] Reagan's veto was overridden by Congress (by the Senate 78 to 21, the House by 313 to 83) on October 2.[13] This override marked the first time in the twentieth century that a president had a foreign policy veto overridden.[2] Apartheid opponents in America and South Africa applauded the vote, while critics argued that it would be either ineffectual or lead to more violence.[12][14]'''
It is not a coincidence that after the Berlin wall fall and the "threat of communism" receded, a political settlement became possible in South Africa. The cold war has a lot to answer for.