Who cares about campaigning? It's whats happens after the election that matters: Does the representative represent their constituents? That's not an electoral system issue.

Each eligible voter should get one vote of equal weight to all others. The EC breaks that.

The EC doesn't "break" equal weights. The US is not a direct democracy; it's a federation of states. The states (semi-sovereign entities) get votes, not people. This is an explicit, intentional design decision.

If anything, we probably need to better subdivide states, and in several cases, at this point large metros (e.g. LA or NYC) should probably become city-states with direct representation in Congress but a loss of governing power and senatorial representation from the rest of their (present) state. e.g. there's basically no reason for voters in LA to have any influence over the governance of Redding.

> Who cares about campaigning?

Electeds. Where they campaign signifies who they think they have to convince and compromise with to earn their seat.