I will disagree -- if a popular vote was used to elect the President in the U.S. then the candidates would simply ignore most of the U.S. and only campaign in a small set of large cities. They would even bother to run commercials in most states.
I still don’t see your logic. We have a very weak voter participation rate because of the electoral college. Moving to a popular vote would drive up participation and would bring candidates into solid states for the other party to increase their total vote.
Your logic is flawed, a popular vote would open up the map and have democrats in rural areas and republicans in urban areas trying to get votes and thus having their issues at least heard by the opposite party.