I really still degree on all of that
> It is a feature, not a bug, that we elect an individual rather than a party
Not it is not. Politics is "team sport". Vetting individuals (look at Sinema's bleeding heart eyeroll to pure cravenness transformation) is hard. Vetting organizations is much easier.
> It is likewise a benefit that our distribution of representatives is weighted somewhat by geography and (indirectly) economics rather than purely by population. Should flyover country count less than coastal areas because farming automation has reduced agricultural jobs per acre compared with LA or NYC? Yes, certainly, but to what degree is the question. The industrial and agricultural importance of these areas means that we are better off when we give them larger representation per-capita than they might otherwise expect due to their meagre populations.
This is ridiculous. This is not the 19th century; Industry and Agriculture are big enterprises that are perfectly capable of being run on a national scale. If you want to promote them, do so based on the national interest with industrial policy, https://en.wikipedia.org/wiki/Industrial_policy. Land-based representation promotes backwards romanticism, not well-engineered modernity.
The Senate giving us stupid things like corn ethanol is not a policy success of unfair representation!
> However that would be throwing out the baby with the bathwater.
Do you really think tons of parliamentary systems around the world are hurting because they through out some sort of "baby" by adoption fair representation?