The indirection of electing a representative that may or may not represent all of your views proves quite frustrating, compared to individually deciding on various issues. Representatives are a package deal: you can only pick from the available choices. If none of those representatives represents your views, you have no recourse.
An individual voter will almost never find a representative that exactly represents their views, so they have to determine which ones they weight more heavily and focus on those. Successfully elected candidates thus focus on issues that the most people care the most strongly about, nearly to the exclusion of all else, which then produces polarizing candidates.
Representative democracy has two advantages: people don't have to deal with day-to-day issues, and representatives can have discussions and negotiations and work out novel solutions in ways that large numbers of individuals cannot.
As an alternative model, suppose that instead of an all-or-nothing election of one representative, all legislative issues (above a certain adminstrative level, such as things Congress would normally vote on) were directly voted on, but people could choose to delegate their vote to a proxy so they didn't have to deal with it themselves. Any proxy, and not necessarily all the same one, or for the same issue. So a sufficiently motivated individual could vote on every issue, but they could also choose to pool their vote with many others, and the vote of those representatives carried exactly as much weight as the number of proxies they represented. Representatives holding enough proxy votes would then carry enough weight to have discussions and negotiations.
I've seen many different proposals for that kind of process. While it would require some new infrastructure to handle, it still seems vastly preferable to the current approach. All the people who want to argue over a tiny handful of polarizing issues can go fight over those, but that doesn't disenfranchise all the people who care about everything else.
> What we should have is much more localized elections of representatives that then make such bureaucratic appointment decisions themselves, including for the higher levels of government beyond them. IE, you can have a representative for every 3 thousand rather than 3 million people, and that representative will join a local council that appoints the judges, city council, higher level reps, etc.
At one time, the expectation in the US was that the states could determine their electoral college votes arbitrarily, not necessarily by popular vote.