Yeah, these have saved us on a lot of issues I feel. It’s simply a much more representative system than what the Americans do and it helps keep a lot of fringe ideologies at the fringes, where they usually belong.
Minor correction, we have preferential voting not proportional.
Mixed, as it is in every wealthy country that has more people wanting to move here than move away from here. Because we have such a large migrant population though it is difficult for politicians to gain traction by being outright anti-immigrant.