So class is the defining factor, more so than race.
That much is bloody obvious, always has and maybe always will.
Success in just about any area of life, from income to longevity, comes down to class. Class and race may be linked, so certain ethnic groups may do better or worse, but class is the one that is always there.
It's a shame that Labour hasn't really tackled it in their 12 years in power, but not too surprising given the New Labour ideology.
The Tory take on this is pathetic opportunism, perfectly exemplified by the quote in this piece.