To me this seems like a flaw in the US's democratic consensus algorithm. It is literally no different than if Bitcoin's algorithm allowed a single node to decide what to do with 100k BTC flowing across the network. That much decision-making power should never reside with a single person, no matter how many people voted that person to that position.
When you think about it, it's pretty scary how even something like a democracy works in practice. It's not a great system but I guess it's better than all the rest?