It goes without saying that apartheid is offensive. It was adopted, however, as the lesser of two evils. The Afrikaners believe that black majority rule has, in almost every case, led to the collapse of the constitutional government which they brought to South Africa, and upon which their freedoms and privileges - and perhaps even their lives - depend. And it did not seem so very bad to deny to blacks a vote which they would, when in power, promptly deny to themselves.