Bias toward moderation is a trade-off. Attempting to minimize it seems naive.
At the extreme end, a legislature consisting of communists, anarchists, facists, theocrats, and hippies wouldn't accomplish anything but igniting civil war.
At the extreme end, a legislature consisting of communists, anarchists, facists, theocrats, and hippies wouldn't accomplish anything but igniting civil war.
I would think all those groups together would only make what, max 20% of the US electorate? In a proportional system, they would still be a minority of the Parliament. And the internal disagreements within that minority of the representatives would prohibit them from joining forces and using even their 20% of the power. The rest 80% could mostly just ignore those fringe groups.