That is not a good argument. People have a right to self-determination. The same logic of populism can be applied on a trans-national scale, even. There is no limit because under your logic, any person's vote is as good as any other's. The fact is we have states to provide a level of autonomy and independence to geographically separate groups of people, so they can live with more freedom. I don't care if the entire state of California is against how I live, because they are thousands of miles away and deserve less say in how I live than my neighbors. The federal system we have strikes a balance between the two.

A president of a federation such as the US must represent the individual states equally, because there can only be one president and that seat has disproportionate power. I really think people flip flop on the popular vote issue based on whether they think it helps their particular party or not, which is unbelievably short-sighted.

The lines on maps are not arbitrary. People decided them by choice and in some cases by force. You might feel no particular attachment to your state, but if another state decided that your state should be exploited in some way, your primary source of support would be your neighbors within those so-called arbitrary lines.

I sense some sarcasm. But you ought to know that the founders, along with Aristotle and other Greeks (basically, the inventors of democracy), were afraid of mobs and sought to temper the whims of the people.

States are given representation proportional to their populations, and also equal representation (in the Senate). The EC and House seats aren't just based on voter turnout, voter population, or even the actual number of citizens in the state (which is rather problematic). So this whole push for direct democracy in the presidential election is stupid. Yes, swing states are a thing, but only because the other states vote consistently in a particular way.

Another problem with using the popular vote to decide the presidential election is that it inventivizes fraud. If someone managed to corrupt a few populous states, they could generate extremely high numbers of fake votes to drown out every other state.