Utterly without irony: http://www.guardian.co.uk/commentisfree/2010/may/12/new-coalition-politics-diversity-women (Hat tip to Holborn). The Conservatives did put up ethnic minority candidates; in the main, they were not returned. As I seriously doubt this was for race reasons (they were largely contesting traditionally Labour areas with relatively high minority populations), I suspect that was because the people thought that their elected representative was the best for them. If the people are allowed to pick the best person for the job, why can't the cabinet be established on similar lines? This obsession with diversity is, I think, another good reason not to implement PR - who dare put up a party list that doesn't broadly conform to census breakdown?