From an article by Hugh Muir in the Guardian:

• The death of Sir Patrick Moore has required due consideration for Farage, too. On the one hand, the astronomer was a proud Ukipian, happy to be used as a magnet for recruits. On the other, he proclaimed "The only good Kraut is a dead Kraut" and, "We are being swamped by parasites. Call me a racist but I would send them all back to where they came from." Some people did call him racist. Tricky.