South Africa has a proportional representation system for similar reasons - to recognise plurality. It has some significant downsides. It weakens the ties between a representative and a specific district / constituency. In exchange it strengthens the hands of party decision makers who are the final brokers of how seats are apportioned.
Having grown up in South Africa and having spent a reasonable amount of time in the USA, I admire the local civic mindedness of American communities and the accountability of the political representatives. I am also appalled by the partisanship. I worry that proportional representation could make it worse.
Having grown up in South Africa and having spent a reasonable amount of time in the USA, I admire the local civic mindedness of American communities and the accountability of the political representatives. I am also appalled by the partisanship. I worry that proportional representation could make it worse.