I think the labels left, centre and right are outdated nowadays.

If you actually look at the political spectrum there is not that much differences on many of the issues between them all.

And where there is a big difference of opinion on a sensitive subject that party will be accused of extremism. As the Tories were for latching onto the issue of immigration.

When it comes to the drearier issues for politicians, such as tax, education etc, (dreary to them not us) they are totally united but for mere slight differences. That's why the 3 party system is so outdated. PR should be introduced to reflect all broader opinions on the 'left' centre and 'right'.

I suppose we also use these labels because it's easier.