The office of the PotUS is not unique. It is one three instances of government - the Executive, the Legislative and the Judicial.
It is THE ONE with a malformation that was necessary to get the southern states to join. They knew full well that the larger populations migrating into the US from Europe were staying in the north. They knew full well that the northern states were anti-slavery. Which is why they insisted on the Electoral College:
From here:
The National Archives - The Electoral College
Excerpt:
The above in red is a mistake that was introduced in order to mollify the southern states who were very keen to keep slavery, which was vital to their economies. They knew very well that the northern states would take down slavery at the first possible instance. So, they insisted on this addition to Constitution as copied above.
It will surprise you to know that the American constitution is not the Bible. It can and does incorporate some mistakes, aside from being overall a job well-done by the first democratic state on this planet. The right to elect a PotUS is regarded in the Constitution as uniquely that of the states. There is no need to change that.
What needs changing is the Electoral College that must report to Washington the result of the electoral-plebiscite for the presidency that is purely the result of a popular-vote.
And nothing but the popular-vote. That criteria does not exist today, and
it is THE UNIQUE ELECTORAL CRITERIA not found in any other election in the US be they town, city, state or national.
The manner of electing a PotUS is unique.
No other country of any consequence, and particularly in Europe, has adopted an Electoral College to decide the president of the nation. Other countries with electoral college systems include Burundi, Estonia, Kazakhstan, Madagascar, Myanmar, Pakistan, Trinidad and Tobago and Vanuatu.
Wow! What a collection of advanced nations ... !