A prominent Scots-based UKIP candidate has quit the party claiming it is riddled with religious bigotry and racism north of the border. Jonathan Stanley, who has contested elections in his home city of Edinburgh, said: "This sectarian and racist filth in Scotland needs cleaning up. It is a great threat to the Eurosceptic cause and civil society."The surgeon had been UKIP's Westminster candidate for Westmorland and Lonsdale in Cumbria.His decision comes after a tumultuous week for the party in Scotland with it sole elected representative, MEP David Coburn, under fire for comparing a Scottish Government minister with convicted terrorist Abu Hamza. Following allegations he also deliberately mispronounced another Asian SNP member's name he was branded an "ignorant racist" by Glasgow Labour MSP Patricia Ferguson and even condemned by UKIP's first MP Douglas Carswell.