Except for slavery concessions, quite the contrary. They got it all right by creating a document deliberately designed to expand with the times. State sovereignty, for example, died almost immediately (long before the Civil War, when it died conclusively). Indeed,
most scholars say it died the second they all signed the Constitution and affirmed “We, the People” not “We, the States.”
States don’t actually exist; they are nothing more than arbitrary lines drawn on maps. There is no difference between an American that lives on one plot of land and an American that lives five feet away. They are both Americans.
So let’s see if you can actually make a coherent argument as to why my one vote in the People’s election (i.e., federal), should count for 10,000 of your votes just because I live five feet away from you.