We are a representative republic why would we allow individual votes to elect our president when we use districts for everything else?
We don't "use districts for everything else". We elect Governors, Senators, Congresscritters, State Treasurers, state legislators, mayors, city councilmembers, sheriffs and judges via direct ballot. There's no reason we can't do a POTUS the same way.
We elect Governors, Senators, Congresscritters, State Treasurers, state legislators, mayors, city councilmembers, sheriffs and judges via direct ballot.
48 states choose Electors via direct ballot.