PRESIDENT Cyril Ramaphosa has urged South Africans not to use murders of white farmers to inflame racial tensions by falsely equating them with ethnic cleansing, a week after a farm killing stoked violent protests. The killing of Brendin Horner, a white farm manager, in Free State province at the start of this month, triggered riots in the town of Senekal. White demonstrators stormed a police station where two Black suspects were being held. Some fired shots and set fire to a police car. "What happened in Senekal shows just how easily the tinderbox of race hatred can be ignited," Ramaphosa…