"(A)ll votes are already counted equally." Well, that is just not true. If it were true, Hillary Clinton would now be president. If it were true, Al Gore would have been president, and there would have been no Iraq War.

A single vote in Wyoming counts the same as three votes in California.

Beyond that, the electoral college, an anachronism dating to the founding of our constitutional government, was designed to give Southern states parity in Congress by allowing non-voting, non-citizen black slaves to be counted as 3/5ths of a landed white man in calculating representation. In other words, it was designed to empower certain states while relatively disempowering other states, and that's what the EC remains today. So in the matter of electing a president, it is states that have representation rather than people. 

We do not have "one person, one vote" in choosing the president, far from it. In the last election, three million voters had their ballots tossed in the trash can.