"Only one major political party in the UK has a vested interested in maintaining and expanding those living in poverty in order to guarantee it voter base and that is the Labour Party"
The Labour party no longer the support of working people, nor most of the left.
It has chosen to ally itself with right wing Tory policies and has come to fully accept unemployment as a way of life for what they consider 'the lower orders'
Unemployment is not a creation of any party as a policy - it is the inevitable outcome of a system now on the rocks.
Thatcher systematically vandalised "crap" (in your estimation) British industry and in doing do, quadrupled the unemployment figures - not a policy - an outcome.
Labour, having accepted the values of the right, have embraced unemployment as a permanent feature of the system they support.
Unemployment is a creatiuon of the right - no particular party - one is equally as bad as the other.
Jim Carroll