Does it surprise you that people tend to have the same basic politics from one election to the next, and vote for the same person as don't vote for someone with the opposite philosophy?
Does it surprise you that most states are not close to 50/50 in citizens with a particular political affililiation?
I'm not sure what your point is, but there are only 33 Senate elections this cycle and more than a third of them are in play. And most of the others are doing what the people the elected them want them to do. Whether you agree with their thinking doesn't really matter. The people of Massachusetts somehow keep reelecting The Swimmer and they even think he's doing a good job.
It doesn't mean elections are a farce or a joke.
Does it surprise you that election to the us senate has become tantamount to a lifelong appointment ended only by retirement, death or incarceration? How do we reconcile this with the fact that most people hold the senate in such low esteem. The elected officials have obviously rigged the system via gerrymandering, pandering and in some cases flat out fraud. That's why I say it's a farce.