There is a lot to be said for proportional representation. To begin with it ensures each individual vote is far more important tan our present system of first past the post, where effectively one person can negate half a population’s wishes, which can then be ignored by the winning candidate for the next five years.
It also means that safe seats become less important because the politicians always have to address the undecided voter – the part of the public that always has the swing. indeed what safe seat would ever truly be safe if the proportional representation system was one of first to third choices and transferable votes?
The main argument against is that smaller parties can gain a foothold into Westminster and end up holding the balance of power against the majority opinion. Unlike today where we have five year tyrannies from the main political parties who treat society like a huge capitalist football match in which the Monarch is not allowed to be a referee and the one we had we are getting rid of (ECJ).
Actually if you are going to have a proportional representative system you need a highly informed voting public. That means increased funding for better education and empowering more people to be less afraid of their thoughts. I am afraid the political parties in the UK do not want that happening.