Your insult aside, this is an interesting conversation. You, and others, take the supremacy of individual states as an inherent good, but you have not provided any specifics as to why. And you also don't draw a clear distinction between States and their residents. A State is a political entity, but its citizens are also residents of the United States.
We don't fight wars as individual states. We don't negotiate treaties or conduct foreign policy as individual states. We did not address Covid effectively as individual states. We are BOTH a single nation and a nation of states, sometimes more one than the other, depending on the issue at stake.
Our system currently has one legislative chamber based on popular representation and one based on state representation. That seems equal to me. You say that electing the President by popular vote would, "stack the deck" in favor of populous states. How exactly is the "state" advantaged in this case, as opposed to the citizens of that state? Also, in the current system, the less populous states are advantaged, thus "stacking the deck" in their favor. How is this a more just or desirable situation?
What tyranny of the majority in terms of larger states vs smaller ones do you foresee? What state do you live in and what are you afraid will happen?