The whole purpose of the Senate is to keep the mob from ruling the country. The filibuster (before being screwed up by Dingy Harry, was to make the Senate slow down and carefully ponder its actions.
The whole purpose of the Senate was to entice the empty states into the union. Frankly, as the Trump would say, we got a terrible deal. I'm for renegotiating.
I have to say that my understanding of the design and intent of the Senate is to counterbalance the weight of numbers that drives decision making in the House. It is to make small and large states equal with regard to one third of the legislative process.
I was earlier willing to make do without saying that because you've not written anything that specifically pertains to that design aspect in replying to the thread questions. I ignored
longknife's initial mention of the purpose of the Senate because his remark and that design attribute don't address the thread questions either.
Frankly, I'd just as soon the whole matter of the Senate's design be left ignored for it's not relevant to whether a Senator or the Senate as a whole perform(s) their/its job as indicated in the Constitution.