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.
Yes, one of its main goals was to make change difficult. But political-party and legislator capture of the system has taken hold (easy example: representatives now pick their voters) and coordinating amendments we need is nigh impossible.
Periodic constitutional conventions would have helped.