By Kevin Maguire Riddled with the fruitcakes, loonies and closet racists that David Cameron once claimed populated UKIP, the Conservatives will suffer grievously for being the Nasty Party. Most British voters are fundamentally decent and so revolted by the likes of hate-filled crackpots Lee Anderson, Suella Braverman and Liz Truss – who have climbed out of the closet and gone public with deranged claims and conspiracy theories. And compromised Tories suffer for cowardly avoiding fully confronting an enemy within, Rishi Sunak’s craven deputy Oliver Dowden a spineless apologist for toxic colleag…