"However, the only way to be rid of this unfair system is to vote lib as neither labour or tory have any intention of growing up and learning to cooperate in government with another party unless they have no choice."

History actually shows that to be incorrect though. They might be tediously slow to implement it UK wide but Labour now say they favour it and of course have already set up PR in Scotland and Wales for those elections. Labour would have been guaranteed probably an almost permanent majority at Holyrood with first past the post, and at the time had a huge majority at Westminster, yet dor the devolved elections they went for PR after discussions with the other parties etc.