The right that comes from living in a democracy, actually. A democracy isn't a thing set in stone. Countries evolve, attitudes evolve, populations change and a good democracy should be open to adjustment. The US electoral college is anomalous. It has just thrown up a winner who got three million votes fewer than the loser. If you let things like that stand for ever more, your democracy is in disrepute and ultimately stops being a democracy. In the UK we endure constituencies of significantly different population sizes. Small differences are inevitable, but big differences should be addressed by all-party discussion and agreement. As a Labour supporter that makes me a turkey voting for Christmas I suppose.