Be careful what you wish for.
The inevitable end result of a full PR system (as seen elsewhere) is some minority bunch of tossers holding a wobbly coalition but the short hairs.
We could end up like Germany. Staring down the barrel of energy poverty as the CO2 lunacy bites, 'cos some arsehat decommed all the nuclear power stations to keep the leaf-munching luddites on message. Worse still Israel, where every step in the right direction has to have a raft of sops to the barking zionists attached to it.