Is the UK political system completely broken?

In the Uk the current mood of the people isn't just anti-Labour party, but anti Politics in general.

But what are the real offerings? Labour advocating a welfare and police state, Conservatives just the same just more glitzy, Lib Dems getting ignored as usual because not many truly see them as a credible option and as a result more people turning to extreme measures - the far right and Green party. They're not much of a 'third way'.

 What other options has the UK political system got to radicalise and progress our society?