Every  other elected official in this country is elected by popular vote in purely democratic "one person, one vote" fashion.  One could argue, as our founding fathers did before the revolution, that all Americans should have representation in decision making that affects their lives.  Some Americans don't have fair representation if we don't have equal votes for the one elected official that is supposed to represent us all equally.  That concept of fair representation was the major principle this country was founded on.  The EC was never intended to function as it does now, as a winner take all system.  It was not the intent of the founding fathers and was only used by 2 states in the first election and eliminated by them after that.  It was later enacted over time by individual states, which is why not all states use that method now.   Reinterpreting history does not make unfairness any more palatable to fair-minded people.