Nigel Farage is a racist because he was the leader of a party which obsessively pursues an agenda predicated on xenophobia. This is a populist stance designed to win votes at all costs. Misrepresentations (downright lies if you like) about the cost of the EU, foreigners taking our jobs, foreigners forcing down wages, foreigners living on benefits and Muslim terrorists hiding among immigrants, etc., are all grist to his mill. He picked up millions of votes by targeting working-class people with these simplistic, fearmongering lies. That is the time-honoured racist way, persuading working people that all the problems of the country are caused by the people in the next tier down from them. And he did stand proudly in front of a poster showing a long line of mostly black REFUGEES which was ostensibly about controlling the movement of EU citizens. I suppose you think he did that by accident.