Amending the Constitution to fix such holes is impractical when it would require the approval of states whose hold on perpetual minority rule would be threatene

Amending the Constitution to fix such holes is impractical when it would require the approval of states whose hold on perpetual minority rule would be threatened. So then we're looking at a constitutional convention. Can you imagine our current crop of politicians cooperating to negotiate something which improves on the current Constitution? I'd expect a prisoner's dilemma with a defect-defect outcome and the winner taking all of the diminished spoils. I think we're stuck with what we've got and we have to hope that enough voters are persuadable, allowing us to emerge from the hole.