The Senate is fundamentally a ridiculous way of representing 350 million people and we’re going to continue to get absurd unrepresentative outcomes for as long as it remains a relevant body. There’s no getting around this and it will structurally just get worse and worse. Simply no way something like it exists 200 years from now, it is probably the biggest flaw in the US political structure right now.
They are intended to represent the states. The whole point was so that smaller states aren't overpowered by the larger states. We simply moved from the governors selecting them to the people selecting them.