i favor both PR and compulsory voting, but i think you are giving PR a bit too little credit. electoral reform is not primarily about better reflecting preexisting voter preferences, but precisely about reorganization the affiliations and allegiances of the electorate. 1/

under PR, organizers can form and voters can join, identify, and vote for “mediating institutions” that truly reflect and represent their preferences. 2/

PR (along with other electoral reforms, like approval voting in necessarily single-winner contexts) is not about reflecting the electorate, but allowing it to reshape itself into something that can more coherently and effectively participate in a democracy. /fin