Well, the Senate was designed to represent the small states, but in fairness at the time you did not have population gaps like today. You didn't have 40M in one state and 600,000 in another...
You also didn't have near as many states.
Still, let's set the Senate aside. The House, which is 100% designed to be representative of the population of states is wildly out of line now.
https://www.thegreenpapers.com/Census10/FedRep.phtml
As you can see on the right side, the "People per house seat" varies wildly by state.
On top of that gerrymandering of districts has not helped. It has lead to results that often don't reflect the will of the voters, and leads to extremely low quality candidates, think of people in the current crop like Marjorie Taylor Greene or Lauren Boebert.
Brad